When I register on the PBE server I can't report problems on Boards, because site doesn't allow me reply or create new topics (infinite Log in to reply loop or to create new discussion you need to be at lvl 1 message).
Solution to this problem is:
1. Clean Cookies and Cache of the web browser you using and restart your browser
2. If problem still persist just write to the RIOT support with request to resync your PBE account with Boards profile and it's should do a trick ;)
Post feedback on the PBE Community site (this site!) here.
Feedback regarding the PBE experience lives in the [General PBE Feedback subcommunity](http://community.pbe.leagueoflegends.com/c/general-pbe-feedback).