doesn't take forums cereal, comes to forum rescue
If you want to charge for sigs, go for it man...and if people are willing to pay you, good on you, but if you use the forum to make money, at least donating some of that would be a nice plus.
of course at the end of the day we can't make you, nor do I desire to try to find out from every person with a new sig as to whether or not they paid you. It was just speak volumes of your character to help a site that helps you.
several members here have donated to the site as it benefits them too.
And to those wanting sigs, learn photoshop, start hustling sigs