Links in join description

Not sure if this is possible but, Is there any way of not allowing links in the join page descriptions. I am tired of people advertising in their description.

Yes this can be done look in the password field builder and under advanced you will see a large box with title check you can see the characters that are not except-able to be placed in the field I am not sure what can be place in  to check but you do not have // in an email in general .

Click here for more info .

Happy thoughts