Why do these forums accept and recommend pushes in many marginal situations like this? Maybe this situation is different since his flop bet was quite a lot. But most people state to preflop bet more, then bet 3/4 of the pot.. and then a push when a weak card comes....

Why not bet 2/3-3/4 of the pot on the turn to allow a flush to draw incorrectly, or another overpair to pay you off?