If Google and Facebook have clear TOS terms forbidding the middle figure and pseudonyms, then I don't see anything wrong with them enforcing those guidelines. (Provided of course they don't ban people who they
incorrectly deem to be in violation, which is a whole other can of worms.)
Likewise, if you have clear TOS terms regarding prohibited activities like patent trolling, then patent trolls should just refrain from signing up. I don't see what would cause the "state of fear" provided customers are clear on what the rules are.