I've done a $260 value BTC-PP transaction with Jon Snow on TBN in Jan 2014 where I went first (
https://i.imgur.com/gxG1kk9.png ), and some other smaller trades too, and everything has been smooth with no problems.
As long as you make sure that it's the real Jon Snow (probably is, seeing Hamuki vouched for him already) then receiving Paypal payments from him should be quite safe.
Maybe make a post in one of the public sections in TBN (like 'free advertising') to confirm this bitcointalk user is yours, then link the post here.
Gl with the thread.