Some of us indeed do make the grand leap of faith of flying people out.
I don’t do that without a ton of judgement, vetting, inquiries, and review of comments on CoM and RM, but it usually leads to a spectacular evening/weekend for me.
Say what you will about deposit scammers that personally victimized you , but point (1) here by @PhileasFogg is indispensable: providers encounter time wasters, flakers who make them take 3 hour trips for nothing, scammers, etc as well.
Some clients may hope that deposits will vanish as a policy, but that is just unrealistic given the bullshit that providers face as well.