I don't think anyone is obligated to adopt every and all available technology. In fact, people who insist that everyone use everything strike me as clueless. Technology is there to make life easier for humans. Period.
I can't stand people who make me wait for their pictures to slowly load via Flash. I pay for high speed internet so I don't have to wait. I understand using Flash so you can control the display of your images. But understand I don't have time to sit through a slew of crap you think is great on the off chance I'm going to like something eventually. What kind of arrogance does it take to assert that each and every image you make is worth extended reflection?
One thing I cannot understand is the feeling that anyone who doesn't like Flash for clearly stated reasons is a "hater," as if these objections are irrational. To me it's irrational to think slow-loading images somehow improve them. Doubly irrational to criticize someone who lacks the patience to wait for something they haven't seen. Do you want people to see your images? If yes, then act gracious and don't abuse my patience with "clever" Flash.