, I don't know if they should be completely removed yet however... and mabye a handicap introduced instead of a straight limit... so how about this as a comprimise.
Every mil of uu you are over 50 mil uu there is a (somewhere from .1% to .5%) (compounded so there isnt a fixed limit) disbansion introduced for all incoming uu to your account except through unit production. For example, if you have 60 mil uu, you are 10 mil over the limit, so when you buy uu (lets work off .5%) 5% (slightly less due to compounding) of your uu disband in addition to the 1% that already exists.
If you had 100 mil uu there would be a (100*.99^50) rate of disbansion (about a 22-23% rate)
The percentage can be changed (and I'll put this in the poll) however this would introduce a gradual handicap to the larger players while still allowing them to grow
Oh also, this would allow players to raid over 50/100 mil, however the same cap that is applied to them buying uu should be applied here

