It is hard isn't it, and even harder when info is so freely available.
There is conflicting evidence for both sides.
It's up to common sense IMO.
With DD I didn't find out that piece of info until she was 6mo. I had eaten it the entire time and while I was BF. She had no issues and loves peanuts.
WIth DS I figured DD was fine so so would he and continued on my merry way. Now everytime he goes near a peanut he gets spots around his mouth, so I'm not risking anything until we can find out for sure (a bit harder where we live). I have also stopped eating them as he is still BF.