Generally speaking limping is bad due to rake at any stakes below like 5/10, unless they raise your limps alot ( > 50% at least if I had to guess). I found some research I did awhile ago with my DB to see how much I was getting raked when I limped/min raised/3x from the SB and these are the results I have written down:
I would be interested if someone could check their DB to confirm I did this right. This is just the rake when I was the small blind and the sample size for limping is <1k hands for each stake since I rarely do it, but that shouldn't matter, rake is pretty consistent (right?). The results are in big blinds, ldo.
It's very likely that I was limping as a result of a villain who was 3betting the banana's outta me, and assuming that they continued to raise my limps alot, that should lower the limping rake since we won't be seeing as many flops.