Throwaway account. I tried these sites a couple of times each in the past (the UK versions at least). I'm married now and fortunately don't have to deal with "the dating scene" and how awful it is/was.

When I signed up for Match, about ten minutes into the process my account suddenly changed to that of another man including different photo, descriptions, orientation etc. I don't know why this happened but it was absolutely mortifying and an outrage Match did this. I dread to think how shit their code has to be to somehow merge accounts or whatever happened. I deleted "my" account immediately.

I imagine that counts as excessive sharing of personal data.