The thing with Match that people don't realize (I had one use it against me) is that even if you just open an email, it shows up as activity. I had a woman call me a liar, she was insistent that I was on match, and must be going out with other women. Which would have been a challenge, since we were seeing each other on the "hey, I'm not doing anything, want to get together?" schedule, and I never said no. I realized quickly that it was her issue, and it was a good thing I found out early on!
I've met several once, enjoyed a pleasant evening, and had no interest in seeing them again.
The closest thing to a disaster was the one that told me I was eating lunch too slowly. Here I was talking to her!