Reformat the text in "don't forget to add system and hardware information to posts!" and follow it up by telling them how to do that, so it's something like:
(size=120)don't forget to add system and hardware information to posts (run Start menu/MX Tools/Quick System Info, which will gather technical information about your computer system, format the output for the forum and copy it to your clipboard: just paste it into your post!)
The existing text tells people to add system info but it doesn't tell them how, and the manual is incorrect when it says "Click Start Menu/Quick System Info" as it's actually under the MX Tools category. Red bold text will catch peoples' eye moreso than black bold (maybe.)
Maybe, maybe, this will get more people giving their system information when they post asking for help. (Though as my mother used to say, "May bees don't fly in April" (or whatever month it happened to be.)