I suggest the lobby 10+0 pool be replaced with 10+2 since it's insane to see a classical game decided by missed premoves.
Strongly prefer 10+5 minimum, but 10+10 preferred. Yes, all classical time controls should have increments. Crazy not to.
No. Sometimes I play 10+0.
I agree with changing to increment. For playing 10+0, there are always the classical tournaments.
I agree, in general the arena format works best without increment (so 10+0 tournaments would still be around).