Nice thanks.. I noticed when you Mark Forums Read, it won't marks your ignored forums Read...
I also use
Display Unread Posts mod and it reflects the number of unread posts (I know that's not an issue with this mod and something that I'll need to address on that thread) so that's how I see the Mark Forums Read only marking non-ignored forums Read.
Anyway, just a thought and I guess the argument could be taken both ways - mark forums read meaning marking Visible forums read or marking ALL forums read... thoughts?