@Blasty, thanks for pointing that out.
As far as open tags goes there are some things I can do.
I can't stop the page rendering them, I need the page to load before I can do anything. There may be some things I can do though.
I can do something to prevent RS Linkify users submitting unclosed tags in signatures.
http://www.indecentcode.com/new_options/
^
Click 'Tab Two' to see what the new signature options will be soon. It's basically an editor with some rudimentary syntax error highlighting.
It doesn't handle text to image codes yet, but it will.
Every sig will have to be parsed through my signature validation before sigs can be enabled. If a sig fails then you will be shown where the errors are, and your sig will be disabled until its fixed.
This also means tags in sigs wont count toward the four line limit. But rendered sig must be no more than four lines.
The sig field will validate posts too. If someone has a post that's not displaying correctly they can paste it into the field and check it. Or use it to design their OP for threads etc.
Anyway it's not finished yet, I'm actually giving the entire options a complete rewrite, it's long overdue. I'm not sure how long it'll take me to complete but expect to see less signatures right after new options update.
11-Aug-2014 15:18:06