The fact that you are playing puts doesn't make you evil, it makes you an opportunist. But...in a market that goes up almost every day I have to question the logic of your strategy. If you spent your time searching for opportunities on the bullish side you're likely to find plenty of stocks that meet your criteria. Surf's up man.
Nothing really wrong with shorting. It's function is there to preserve the market. There's a lot of shell companies out there that lie to just get their share prices up. Those companies do not deserve to have high prices. If you are just a day trader, it doesn't matter since you are out by the end of the day anyhow. It would have little effect since you are buying later to get out.
Biggest problem with permabear is that it gives you a bias in game where you must trade what you see.