Turn off signatures completely?

Is there a way I can turn off signatures completely as they're making my threads look tacky.

No way of stopping them being displayed even if they have them set already?


Formerly CyclingTribe
Without the use of an add-on - disable the signature editing permission for the primary usergroup (so no one can add a new signature), then manually remove the exisiting ones user by user via the ACP. (y)

There may be another way, but that's how I've done it at one site.

Shaun :D