There is a Maya FAQ already: https://simplymaya.com/forum/showthread.php?t=35308
which you can add to, if you think something is frequently asked (like "Should I save as .ma or .mb?"). I guess a lot of the FAQ is troubleshooting too, very frequently occuring problems. Regarding tips, there's no need for tips to be advanced. Something like "hit f to frame the selection" can go in the tips and tricks thread (in fact it's already there). Hope that makes sense.