Sure, but it's a large sample based on self-report instruments. This is definitely evidence, but I do share the OP's concerns around controls and would regard

Sure, but it's a large sample based on self-report instruments. This is definitely evidence, but I do share the OP's concerns around controls and would regard this finding as somewhat likely to be biased by the kinds of people who both a) have internet and b) are willing to respond to a really, really long poll.