leave it as it is
there will always be whiners who want new avatars
there will always be whiners who want custom avatars
custom avatars defeats the purpose of cache...nothing like downloading 20 or so new images every time you view a different topic
plus the ability to set a custom avatar (as a user) does not guarantee that the user knows how to make an image thats LTE 1k
nothing like getting a huge graphic scaled down
and don't even bother arguing that by saying, "ehh use some server side application to regulate file size and regulate file type and regulate file type"
heres a fact, it would take at least a week to code that up, probably 2, add another 2 weeks for testing and implementing
1 month of coding just to shut up a few whiners
end result, twice the amount of whiners because they're sick of seein janets animated bewbie