What's important to me when showing cards is to know who you shown what to, and have some idea how that information might be perceived, and how they might try to exploit this tendency. When I show my cards, I adjust my game to try and counter expected villain adjustments. Some adjust better than I do, sure, but most of them don't because I play micros and almost everyone is a retard.

I doubt I'd be showing bluffs and big folds at 50nl.