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I strongly agree with this. Internet dating generally has become a toxic experience for men. It definitely increased my feelings of loneliness. Anyone who is already lonely or lacking self-esteem should stay well away.
I'm not familiar with the current generation of dating apps, but I met my wife on plentyoffish a few years ago. I also was a lonely introvert and provide my experience as an example to the OP: I was in a very similar situation to the OP, an introvert who's career and interest led to a state of near constant solitude. I lived this way for over 10 years. I had a weekly routine; weekend was going to the store and househ…
In regards to dating sites, I've tried using them on/off for probably a year or two now. I've had a couple dates but they fizzle out quickly. Unfortunately, my age-group is big on the "hook-up" mentality which really doesn't appeal to me. Maybe, as you said, I need to just get back at it.