Happy Christmas all. Haven't been on here in ages, but I check in from time to time.
Yes, this has concerned me a bit too. The rules are there for two reasons - to help protect posters on here from the perils of online and real-world dating, and also to protect the Thread itself.
The reason for the 'No Dating the Thread' rule is that this place is part confessional, part entertainment, part support network. Everyone on here takes on the role of therapist (albeit in a very unprofessional way) and everyone, men and women, can talk about their situations without fear of being targeted or taken advantage of by other posters.
It's not breaking MN rules of conduct, but it makes other people feel uncomfortable, which may prevent them from posting because they might feel they'll be targeted by other posters on here.
I've met other people from here but in a large group. There are stories posted here and on other MN threads about predators, catfish, stalkers and other unsavoury types, and no, not everyone on here is au fait with protecting themselves - that's part of the reason why this thread exists, to be a safe place for people to learn and talk about their situations without feeling threatened. Some people feel uncomfortable with it, enough to speak up.
I've felt stalked before by women I've met in RL, and through OD. The last thing I wanted was to feel pressurised into meeting someone on here. I was one of the first male posters on here, about 70 or so threads ago, and some people were unsure as to my motives until we worked out those thread rules and people knew I wasn't going to take advantage. In the past, several men have popped up on here, posted a couple of times, then started PMing women in obviously vulnerable situations and asking them out for a drink. Hence the Rules.
So, to reiterate, Don't Date the Thread. Arrange a group meeting if you want to, they're really fun and nice, but not individual first meetings. Please.