Farming Void Bases

Solo drops aren't any worse. Just less, seeing how you don't need to fight people for them.

But yeah, cows has always been a great place for bases. Though other things you run anyways are fine, too, so long as they include enough mobs to kill (CS for example is also pretty good).

For a pally or necro, the base obviously doesn't need any skills as they can't use them anyways.
For a lock, it ends up just as easy/hard as any other skill base (Mosaic, White, ..) as finding one with 1 or 2 useful skills tends to be comparatively simple, especially if you don't insist on +3, so that's your starting base to get a first Void. But finding a proper, GG, end-game base with 3/3/3 of the right skills will be and always has been nearly impossible (regardless of player count).

I got a few with 1 or 2 skills worth using and that'd make a decent starting point. But those are also common enough to just buy (relatively cheaply) or not bother keeping to sell because of that. Especially if you (unlike me) don't insist on elite bases.
Case and point, there's a +3

Abyss

Legend Spike up for offer here atm that's been sitting there for a week with still 0 offers (NL/SC, didn't check any others).