I make it $5 pre-flop. My 10x from the blind special might be a leak, I'm not sure yet.
I bet pot, making it $4 PF. I agree it might be a leak betting like this from the blinds, but betting $2.50 with four or five limpers who have position on you is begging for a bunch of calls.
The question I am trying to get answered is this - When someone makes this move is it typically a "move" or a donk who was slow playing a monster hand?
It's usually AA or KK, I've found. But as has been pointed out, even if it's a "move," it's still likely a PP, which you're a bit behind anyway. I fold here every time, all day.