I feel like a common problem is people say they want to play D&D, but in the same way that people say they want to go to the gym, or take up weaving, or whatever. A lot of people are really bad at honestly, accurately, evaluating their future self's energy level and interest.

There's also people who say they'd totally like to join their D&D game, but they don't really. They're just afraid of conflict or hurting your feelings. There's this thing some people do where they try to spare someone's feelings by being a little dishonest, and end up causing a lot more problems. I would so much rather someone just say to my face "I don't want to play D&D" than "oh yeah that sounds fun" and then they keep having scheduling conflicts or flake or ghost.

So yeah, I don't know. Some people are just a mess.