I forgot about that shill Blogger Hiroshi of the "Mighty Dragon Fan Club". He posted using Pidgin English and had nicknames for the various modeling companies, often based off of the company logo or name. Tamiya was "Two Star", Tristar was "Three Star", Trumpeter was "Bugler", Bronco was "Pony".
Because of this, many modelers called Dragon "Lizard".
Generally speaking, forums fell out of favor because our hobby is a visual one. Most forums required modelers to take photos, upload the photos to a hosting site, figure out how to embed the picture into your forum post (so it appears as a photo and not as a link to click), and then once photos were removed to make room for newer photos, the original thread became useless for viewing.
Just click on our testing forum and you'll see folks trying to figure out the whole picture in post issue.
Then there was the anonymity thing. Many modelers were very mean spirited when posting in forums, but once you saw their kits online and then saw their kits in person at a show, it was easy to call them out. You knew who they were.
Those types of guys took their bat and ball and went home because they couldn't be their mean self on forums. I had my own detractor here and once I identified him by his actual name, he virtually went invisible here. While I don't think we ever interacted in real life, I know we went to the same shows a couple of times.
Going way back into the 1990s when AOL had a model making chat room (I met Al Lefleche there first), most of the "serious" modelers were on the old USENET (User's Network) newsgroup rec.models.scale (Recreation: Models, Scale).
I can remember if you missed a day of discussion, it could take hours to catch up.
To some folks on that newsgroup, only true modelers built kits from scratch. Anyone else was a "kit assembler".