I am surprised that so many people here are saying that this is no problem at all.
It's not a problem because they're easily identified, and taken care of.
Are you telling me that it is no problem if an account appears here on the forum as a1egotardo, using the same avatar and signature as my account?
The acccount would need to earn 100 Merit and 120 Activity to get an avatar, and much more Merit to be able to use the same signature. Imposters aren't going to put that much effort into an account that can be banned at any moment, they're usually just trolling or looking for a quick scam.
Back in the days, when users started having the same signature and avatar I had, I sometimes thought: "I didn't write that", while in fact it wasn't my account. It turns out I didn't even look at the username.
to me the number ONE and the lowercase letter L are identical.
There's a slight difference between "l", "1" and "I", but it's easy to overlook.
Obviously, my account is legendary and this new one would be lower in rank, but this is a detail that could sometimes go unnoticed.
We don't share a lot of topics, but I expect anyone who's familiar with your username to quickly call out imposters.
I am not saying to block registration, but rather that accounts like this should be banned as soon as they are identified
I'm not aware of any imposters that aren't banned or at least tagged already.