[AZK]

I think not raising JJ preflop is just encouraging people with worse hands than you to catch up and outdraw you on the flop. While JJ is good, there are only a handfull of flops that look really nice, I don't think I ever feel truly comfortable on a flop that doesn't resemble JJx, or Jxxr.

Also, this is microlimit NL online, people will play with you anyway, why not raise when you most likely have the best of it?

I think the best EV edge JJ has is preflop, there isn't another street that even comes close. If someone reraises you preflop, you can take it from there based on odds to hit a set/raisers standards and so forth, but if you don't raise, you have no idea where you stand on the flop.