For some people it could be, i know people that create email accounts with a combination of all of their names, not that it can affect them too much, but it is somehow connected to their identity in real life.
Yeah, but you should avoid that in the first place. Like I said, there is no reason to use an email that shows your real name or one connected with a third-party site where your name can be obtained from there. This is a forum where you are not asked to identify yourself, so it's better if people used that to their advantage. A username is everything you need.
No one should unnecessarily risk putting a target on their backs by revealing what street they live on, how they look, what their names are, and how many Bitcoins they have managed to collect after all these years.