I think it comes down to defending the value of your hand. Most micro limit players are beginners and so they think that everyone is bluffing and that Ax is unfoldable. So people bet 10x or 20x the bb with pp 10s because they need to scare away the Ax players. Or at least try to. Because when you raise 3x the bb, on a 5c/10c table you get 6 callers. When the flop comes 3 6 9 (2 clubs) and you pot bet, you get called by the guy with Ax and the club flush draw. Then the 4 of diamonds comes. You bet again and you get called again. And then the A spikes on the river, even though they had no odds
to call you down.
Why did they call you down? A) They are stupid or B) IT'S MICRO LIMIT. People don't care about dimes and nickels.
Don't be so shortsighted to think that people with thousands of dollars in their account will not plunk down $10 in a micro limit game and just screw around. They do. And they love to do it because they know there are people trying to grind their way up the ladder.