[GtrHtr]

keeping the pot small often provides the correct odds for draws to stay in the hand. That being said, at micro's players often tell themselves "zomg, I have a flushdraw" and call you down. That is were value betting them to death increases your winrate a lot at these levels. Often though, on later streets you need to recognize the situations where you should c/f or b/f if a draw hits based on the players.

In the hand you posted, you should def bet the flop (pot) or raise the flop if sb opens. Re-eval the options once the flop action developes more from there and you can begin to narrow ranges. A reraise from utg or button on the flop would more likely be a stronger K and not a FD.