Death-By_Snu-Snu

Sorry I'm not Matt Smith, but what the hell, I'll answer anyway.

It is not unexplored territory, but it's not really something that has been gone into a whole lot. The Time Lords have been known to take away or give regenerations to especially awesome Time Lords, with no repercussions that I know of. However, it's when a time lord is running out of regenerations that there can be problems (see The Valeyard and The Master since 1996)

Source: I know way too much about Doctor Who for my own good.

Hah! Matt Smith responded to me on reddit! I'm going to tell everyone!

We're not though.

Oh stop. You bloody Daleks and your screaming and trying to kill everything. Don't you ever get bored?

I actually thought about using one of my alt accounts and claiming to be him, but decided against it.