Both players F'd this one up. The low draw is going to lose long term raising a naked low draw on the flop like that, unless the villian is very weak. The villian's call of the raise on the flop is fine (whoever said he should reraise needs to go run top set vs. low+flush draw in 2dimes). Turn play fine both. However, villian should lead the river w/ top full. Once in a while he'll catch a donk playing flopped 2 pair like a jackass for a stack, the rest of the time it's a chop at no risk (except quads, but that's virtually never a reason to check top full).