A few clarifying notes, as it appears there is still some confusion on how things happen in the AA sims.
1. There is a box for each parcel that is usable as a home or business. If you go to the AA tier boxes, there is one for each parcel. The only time i've combined parcels are when extra prims were purchased. I think that is the same as in CDS.
2. The central system was set up because of a preference of the sim founder to be more like CDS. I own land in several different SL estates. I personally much prefer a system that is ON the parcel, and have proposed moving the AA tier boxes to the parcels. This has three benefits:
a) when a parcel is sold, there is no specialty work required to transfer the tier box. The new owner simply pays it. With a central system, new textures with avatar names must be created and applied. I think that is true for Sudanes' system as well. A parcelized system also helps cut down on volunteer time... some people can't seem to remember where the tier boxes are located, month after month.
b) Grouping together that many tier boxes, for more than one sim, causes a script load on the sim. Spreading them around the sims events the load out and increases the user experience for everyone in the sim.
c) Citizens are able to clearly tell what they pay for what land. The CDS system gives us a list, once a month when we pay. If we want to sell a parcel in the interrim, it requires looking up the information...which requires knowing your parcel numbers. As many of us have learned lately, parcel numbers on many parcels no longer show up on the land tab. That means you have to find the parcel on the map then find the parcel on the master parcel list all to know how much you pay for each one. The hippo system gives that information on touch, and can be set to retain the privacy of the parcel owner.... i.e., you can find out what you pay, but your neighbor would have to go through the system. This helps people plan finances.
3. one other benefit of the hippo system that CDS does not presently enjoy is the ability to account for the exact number of days for which we pay. CDS lets us pay anytime in a 21 day window, for the month we pay in. But it is VERY confusing... if i pay on the 15th of February, i've paid for February. If i sell the land on the 20th... who owes what when? And if i don't pay, then when am i in default? If we want to have grace periods, that can be built into a system. But having people remain on land for weeks after they have stopped paying tier, seems wrong to me, and leads me to 4.
4. Group ownership is a problem in CDS. It is a problem to determine who is a "citizen" because they pay tier, and it is a problem to divide up payments. Theoretically, group members must physically enter the sims and pay their CDS tier box a minimum of 100 L, and then are considereed citizens. Theoretically, they would have had to have owned land individually before becoming a group member, but then can have citizenship forever as long as they make that trek to pay that 100 L. This system has been used and abused in many ways in CDS, and it is time to get rid of it. Since all people have to do to get around it is sell land back and forth to each other after creating a group, it is truly a loophole to citizenship. On the other hand, regardless of contribution, we do not recognize citizenship from people who don't pay for land. Technically, this includes anyone who "rents" from a landowner, or whose vendors appear in a shop and who may very well have a great impact on the financial health of a sim.
Not to preach too loudly in favor of Hippo, because it does have drawbacks, but groups can be designated in the system. This would eliminate the problem of people coming and going from groups during say, election times.
5. Prepayments are not allowed under the CDS system. That works fine when the time period for which the sim pays its tier to LL coincides with the time the parcel owners pay theirs. CDS chose this route to assure that people would at least make an appearance in the sim where they owned land every month. It was adopted during a period of time when we had very few events, RA meetings could be conducted with 3 people, and our community was stagnant in growth. Not only do we have many more things for people to "log in" for, we also have the complication of the prepayment of tier required by LL for non profit sims. Al Andalus began with a requirement that citizens pay 6 months in advance, as that was what was required by LL. For many reasons, the initial tier payments were spent on development of the sims, and after the initial payments, AA went to a payment system that mirrored the rest of second life. For several tier cycles, I advanced the tier from personal funds, and prepayments by the AA residents repaid those advances. When CDS too over, it was credited with over 1000 Usd in prepayments made by the AA citizens, which eased the financial requirements from CDS to pay the tier that was due. Continued pre payments by AA citizens continues to keep the amount from our CDS treasury from being overwhelmed by large tier payments with no reserve from which to pay. Many of our citizens pay several months in advance, and we've not had an issue with citizens not putting in an appearance in the sim... they are part of the project because they want to be, not because of any requirement to show up. I think most of our sims have developed the same kind of citizenry, and their needs/desires to pay in advance should be respected.
happy to answer any questions.
Rose
(edited to fix outline numbering.)