No, not that I am aware of.  Near as I can tell what some guys have done is go "shopping" for a good handle to use in the reviews.  One of the most obnoxious assholes doing this is active in the D.C. area and causing quite an issue there.  He also seems to have a couple of his own TER handles and was, according to the provider, brazen enough to then turn around after ripping her off and write a bad review of her under one of his handles.  I was not sure which handle because there were a couple of not so good reviews in with the good ones.  In this case it does not seem like like guys sharing a TER account.  It seems to be where the provider got a bit rushed and did not take the time to have him PM her first to verify the person who contacted her actually had access to the account.  And I must say, I have seen providers not seem to worry about such verification myself when I have mentioned I can send a PM if they like.  That is a good tool that should be consistently.  It works as long as it is not the hobbyist allowing others to use his account and I would hope there are not very many guys that would allow that.  But I guess there are always some.