A neutral tag indicating the account having no affiliation with the real bpip.org would be an wise idea. On other side it's noting of an high risk though.
If the account posted in meta, bitcoin discussion, he can gain the trust that he is from bpip project. I wouldn not doubt even if I did not see him in altcoin discussion. In that case, I would be the fool to trust him. I am sure that I would not be the only one. That's why a negative tag is more correct here. He was clearly an impersonator and it could bring a great loss to someone.
Not a huge risk but it'd be quite bad to have this dingleberry start asking for donations or something.
May be he has already asked or may be not but if he would use a bitcoin address in his profile, someone would send donation to that address too by knowing that it is original bpip account.