A thread about threads that thread onto another thread and thus go off-thread...!
THis is one reason, I love this site... I've just been browsing through and found very few threads that actually completely stick to the original thread topic.... and I personally think that's fine... I mean to say, how many discussions do you start in a group situation where when you're chatting away, you stick to one topic and one topic only? maybe in a business management or committee meeting... but just in a social situation? you see my point, yes?
Another forum I visited states that if you go off thread for more than two posts, the thread will be deleted. Natch, I stopped using that one ages ago.... The Moderator (that would be you Brian,!) on this site is tolerant, easy-going, fun and relaxed. Brian is an anangram of Brain. And what a fine one it is....!! :)