So, I've been aware of this community for like 4 years now, just kind of hanging around the edges. But I've finally decided to jump right in and be a part of the action! ...
... On what boards would I learn the most about Bitcoin?
... On what boards would I learn the most about Bitcoin?
Welcome, first. Being aware of this forum and "hanging around the edges" leaves some room for interpretation about what you've been doing all those four years. I'm not going to speculate about it. If you've been wandering around the various boards, I'd be surprised that you ask where to learn the most about Bitcoin. Seriously, what have you done all the time?
Now, what exactly do you want to learn about Bitcoin? Technical stuff and questions can be found mostly in Bitcoin Technical Support but also in Development & Technical Discussion. A nice external site is also https://learnmeabitcoin.com or Mastering Bitcoin 3rd edition. Various ideas and discussions about Bitcoin are in Bitcoin Discussion.
Read the stickies of boards, they contains valuable details about important topics not to miss.