I've had 2 in the last two weeks, both requests.
2 weeks ago I had one from Chase, yes a hard pull, but it doubled my CL from 6,500 to 13K
And just a couple of days ago I requested one online from BoA and went from 7,100 to 11,700. I don't get how they come up with those CL's. Not quite as nice as Chase, but no hard pull and enough of one to bring my balance on that card to under 50%