I often bet over limpers because I am usually doing it in position, so even if I get called, I can adjust my play properly post flop..
I would advise not to isolate over limpers in case you see UTG limping. 5-10 years ago this was a genuine strategy when you hit a monster hand UTG like AA where players would limp, hoping to see a bet or iso, so that they could shove it in or 3-bet, and I have seen similar plays today as well so be careful with that one..
Also, I have to recommend to players NOT to limp. It is really the worse possible thing someone can do, especially in MTTs.. Honestly, majority of the players on CC limp and that is a huge flaw in their game.
I only hope many will read this strategy article and take note of this line:
"The players who open limp tend to be the weak players."