If chess.com allowed people to use chess engines to find their moves, would it be cheating for people to use chess engines to find their moves?
Clearly, it would not be cheating. I've heard of other sites that allow computer usage and I don't play on them because of it, but I don't consider players on that site who use computers to be cheating.
In short, if chess.com allows databases, then it's not cheating to use databases on chess.com.
Sometimes I choose not to use databases to make sure I don't rely on them too much, but most of the time I use them because it really helps me learn the openings so I'm better prepared for OTB play.
A bit of advice Frankyyy? Leave the notebook computer at home or the office next time you go to the pub.