Lot of minbuys but at twice the minimum ($200) this helps. Lots of limping of course and people calling for 1/3 of their stack preflop with their entire hand range. The standard 2/2 open raise is usually anywhere from $12-17, mostly due to frequent straddling so half the time it's 2/4 anyway vs $100 stacks or less.
The only time anyone has a bigger stack is either because they won it or transferred from another game. Most of the 2/2 players buy in for the minimum ($40, uhg) to $100 tops. My card room has a 40/300 buyin limit for 2/2, and a 200/800 limit for 2/5.
