A basis of 100 means that the overall difficulty won't change much for big servers (at the beginning less, later more than 100 players).
Thats not right. In my first post I sharded a table whichs shows connections of a city in the largest regions on a german server, where 100 connections was reached in level 12(!) after 33 days. If you can level about 10% quicker you can already have reached level 13 at this point, because you won't get connections quicker. Even if you get some connections over 100 you'll only have to carry about 2-4% more for the last two levels.
but for small servers it will get significantly easier. And that's good. I saw some level 4 landmarks at the end of era 5 on the scandinavian server.
Thats right, but this cities are far away from 100 oder 70 connections and on the other hand the new way only will lead to about 15-20% less tons, perhabs one level more for them. Thats a structural problem, that won't be solved in this way.
A basis of 70 would make it harder for everyone. Whether the real average number of players per city really is 100 doesn't matter.
Of course it matters where the average number is. If you change exponent up without touching the basis you do it easier for everyone, when the average isn't higher as the basis. This number haven't to be the average of course, but have to be also balanced because I is in conflict with the real goal. Make it easier for cities with less connections / players. The goal shouldn't be to make it easier for larger servers or regions. So let's discuss about a good numbers:
The average in large regions in SoE is maybe around 25 days and level 8 oder 9 in LM, where you have about 70 connections. Thus it would be a good point I think around this point to have nearly equal numbers for not making it to easy at all. Thus: For basis 90 and exponent 0,75 we have nearly the same numbers in the lower connections like u prefer in 100 and 0,7, but since 70 connections more tons to carry as it is in old 100 and 0,5 system. So larger regions have a quicker progress the first about 25 days but on the other hand a slower progress after it, thus around as quick as they are now, but cities/regions/servers with less players much quicker as you want.