The micro tables are hard.
A small buy in allows people to play a lot of hands and it's not unusual to see 4-5 people take a flop.
That makes it difficult.
The range of hands being played on a micro table, especially preflop can be VERY wide.
Remember some of the basic rules of good poker
Raise if you have a hand worthy of playing, a limp just invites more people into the hand.
Position is important but on a micro stakes table, a good starting hand is more important (IMO)
People will call with just about anything so make sure you have something to start with.
Post flop is a different matter, if you hit it, then bet it.
Trying to trap can be dangerous and bluffing
is even more so.
Micro stakes brings out most of the fishes and the fisherman!
They will call that gut shot, the flush draw and even play a small pair to over cards and as you mentioned that will hit it sometimes.
And then they think they are playing good poker so they're not going to stop.
Wait to you get that strong pocket pair, or hit a great flop and then take their money, eventually you will see a good return.