Yeah, a Q-tip wont hurt it. You can be a jackass and try to scrub it and then you can have problems. But think about it for a second... why would you need to use a q-tip in the first place. There isnt going to be anything on the MAF sensors that would need something like a q-tip to "scrub" off. I would suggest to everyone not to use a q-tip. Nothing elect. cleaner wont get off, like you stated before. I clean toyota MAF's off at least once a week. Elect. cleaner... all set. saves money, time and you wont damage it.
1995 SVT Mustang Cobra. Stock...
2006 Mitsu Evo MR full bolt on with FP Green 500awhp
1992 LX 69k miles, ON3 70mm single turbo
2009 Toyota Camry SE DD
Marine Machinery Technician, Department of Defense.