if you edit your post to correct something it will mess up any tags you use (links, pictures etc), it seems to be a bug introduced during last nights downtime, hopefully they will fix it soon but in the meantime if you have to edit a post you must delete the crap it adds and retype the tags manually.
by tags i mean stuff like [url] or [image] or [ colour]
by tags i mean stuff like [url] or [image] or [ colour]