If you feel guilty, buy a few memberships to a few sites and support the art which you enjoy. Seriously, that's what I do.
I have a pair of memberships. No, I will not tell you which ones (for people will bother me with requests for illegal content sharing). I rotate the ones I belong to every 3-6 months or so (never more than two). I actually spent more money regularly renting or buying media. I travel so physical media is best (mobile connection are too slow. In any case, I support the industry I enjoy.
If every member would pay for just 3-6 months of membership to their favorite starlet or two (let alone reward a few of the OCSMs here), that would go a long way to supporting what we all enjoy. Consider budgeting just $100-250/year to do such. It's nothing. I mean, if you went to the movie theater once per week for a year, that's $500 for just yourself. Consider a couple of short-term memberships throughout the year and rewarding those who provide you the content you enjoy.