I've played more than 70k hands on Bovada, and I frequently look at the HH to see what people had when they made a big move pre-flop.

3-bets are pretty rare on the FR tables, so 4-bets stick out like a sore thumb (do people still say that?).

I can't say how many 4-bet hands I've checked out, but it's probably less than 100, so still small sample.

As far as comparing to other sites, I have heard from other people who play on other sites that what I'm describing on Bovada is not their experience on their site. The Bovada anonymous system alters the game play enough, I guess.