And so far how many people have been banned that way? How many do you plan to ban? Would you like to be banned because you had a strong point of view against/for some politically hot topic? Banning someone just creates enemies and more trolling. It takes 1 minute to create a yahoo mail account, and then you never have to read it and forget the password after a day so trolls can still be trolls and you made it harder to contribute here.
I find it easy to answer someone's question by just posting, not having to turn on cookies, log in and all.
When you turn off cookies on some browsers your cookie file is deleted, so if I turn it on/off for this board I would have to log in each time.
Wonder why you get popup ads/windows? Keep that JavaScript turned on too. Oh I forgot, in Explorer by Bill Gates you have no clue what that is so he can SPAM you, how nice.
The mods here seem to be keeping things in check through the threat of message editing. I see it working, don't you?
Control is bad, you should learn from governments that have tried it.