I did. The only challenge I encountered was the usernames and email accounts merging - which wasn’t perfect. It was probably an error on my part because it was more complicated than I anticipated. After a ton of work, and hard conversations with established members, we decided to leave the past behind and start over (we originally merged from vBulletin which went well). In retrospect it was the best decision. We use AWS for all of our media uploads now instead of keeping any content on site which has kept costs down significantly. Full disclosure…I made the mistake back in the days of BBS to operate a political forum and continue to do so (I may switch to hockey or something a bit less stressful). Stale political conversations and bickering weren’t really worth saving…since the banter and bickering never stops and getting to thousands of threads isn’t so tough.
I could see how someone buying an existing community, merging separate knowledge bases, or combining corporate communities of practice would absolutely need a flawless merge. For my purpose it wasn’t a big deal. Apologies to all for not providing an update. When things didn’t go as planned and I couldn’t figure it out, I didn’t want to be a pain.