did it work out?
As you found yourself, yes, it did.
I often see topics posted here that read "I started a board, how do I get people come." In my case, I already had the people, then just needed somewhere to go. So I gave it to them. 8) The board is 3.5 years old now, and has surpassed anything the mailing list ever did as far as activity.
It was an interesting project. As you can imagine with 3000 members already on the mailing list, there were quite a few "active" and devoted members. But when it came time to do something about the fact that the list was going away, there were 4 kinds of people. Those that did nothing. Those that did nothing and whined about it. Those that were willing to support someone else
doing the work, but weren't willing to take the initiative to do something themself. Oh, and me.
Many (if not all) of the "whiners" eventually came around and continue to support the board in its current form. Some did not. No biggie.
But that's just a longer-winded answer to "why did I start it?", which essentially boils down to "because nobody else would." We'll go over 200K posts tomorrow.
I'll add a follow-up question to the original two that started this topic:
Why did you open your own forum?
did your forum get to the size you wanted?
I would like to add: What did you intend to accomplish by opening a forum?
If you know the answer to that question, then you know if your board is a success or not. I opened my forum as a replacement to a mailing list. My intent was to provide a migration path for existing members while offering new features that phpBB could do that a mailing list could not, while maintaining (and growing) the membership. All of those goals have been accomplished.
I submit that if you don't know what your goal is, you'll never know if (when) you are successful.