[BlackHole™]

Nah, It fucks up my eyes when reading the threads. So, My opinion as you asked. Please stop :P

[Windows95]

Don't see the point in centering. Its a waste of time and a majority of people don't like it.

[Skitzo.]

Idk I don't care about it.
Everyone complains if you don't use the standard font and the default left-align lol.
I've seen people bitch about all kinds of mediocre shit that really doesn't effect them, but they personally don't like it so they feel you need to change it.

[.Crypter]

I don't really see the point in centering your text, my eyes automatically scan to left to right so really pointless.