I think Aero and Forever have a point.
It's not really them being lazy but the annoyance of having to open up the alt thread to check who someone is, I mean I'm not trying to sound stuck in the past but when we used Shoddy and people mainly used their PC usernames, it was not only a.) easier to identify who was who, b.)the fact that everyone knew each other meant it was more of a community. The argument of "you should know who is who" is quite frankly a weak one, it's the internet not irl and people can be mistaken, there are alot of cynical people for example, mistakes can and have been made.
While limiting the amount of alts seems harsh, in retrospect it's not really that bad. Name changes were stopped on PC ages ago iirc and no one is complaining anymore. Just be honest, do you really need 26 accounts of your favorite celebrities/random names?
I think 3 is a fair number, it lets you have a fair selection of names/colours without completely confusing everyone. Although to be fair this has been blown out of proportion.