[BaconDelight]

There is an update later in the thread that limits file size as well (called image weight). Yours is a good option too, lets you be more flexible by just alerting mods to it, rather than putting a hard limit. Just thought I'd point you to another option that would save you guys some administrative work, so instead of policing it, checking image sizes, and suspending people, the other hack just makes it impossible for anyone to have a sig image that's too large.