Alternative logins are necessary if you want to give actual useful feedback, as some people can't take any hint of criticism without getting angry and hunting you down like a dog, which is a pain if you're one of the few who foolishly use their real name.
Apart from that, it's often great to try out new ideas, and collaborate.
Just a reminder - without alternative logins we wouldn't have had the following classics:
- "Des and Stan"
- Gong of Fur
- Jeremy Vine
- and loads more!
And don't forget what I believe is the most popular story that NewsBiscuit has ever had, which went viral and got reported as real news - maybe that would never have got posted without the Uncle Bertie pseudonym? Funny how we haven't seen him since, eh?
The bad things about extra logins are abuse and bumping your own sub (especially when it's rubbish). But couldn't those things just get fixed with a bit of light touch moderation?
Generally, the extra logins are part of the rich tapestry of the biscuit, and help make it what it is. Banning them all would be a big step into the dark.