I miss traditional message boards. No karma, no sorting algorithms, you just get new topics on top and replies are sorted oldest to newest.
You can have forum threads that go on for decades, but Lemmy’s default sorting system quickly sweeps older content away. I’m aware you can mimic the forum format by selecting the “chat” option in a thread and sorting by old, and you can sort posts by “latest comment” which replicates the old-school forum experience pretty well, but nobody does it that way, so the community behaves in the manner facilitated by the default sorting algorithm that prioritizes new content over old but still relevant content.
I also notice that I don’t pay attention to usernames on Lemmy (or Reddit back when I was on it). They’re just disembodied thoughts floating through the ether. On message boards, I get to know specific users, their personalities and preferences and ups and downs. I notice when certain users don’t post for a while and miss them if they’re gone for too long.
EDIT: given this is my most upvoted post on here to date I’d say the answer is yes.
You’re in one right now. Lemmy is basically a forum: people can make posts and reply to them. The only difference is the points system.
Like I say in the OP, Lemmy and other Redditlikes have a default post sorting algorithm that prioritizes new posts over old but still active posts. This has a huge impact on the culture of the site. Topics are more ephemeral. Once they drop off the first page nobody will ever see them again.
On a forum, if a person wants to make frequent updates over a long period of time on a single topic, they can make a single megathread that stays visible as long as new replies keep coming. On Lemmy et al. the topic quickly drops off the radar no matter how many people reply, meaning if the OP wants to make frequent updates on a similar topic they have to keep making new posts if they expect people to reply.
Let’s say I’m on a car enthusiast forum, for example (IDK anything about cars). And let’s say I’m restoring an old car and want to share my progress over the course of months. I can make a single topic about my project and post replies to it with pics and updates about what’s going on. As long as I keep updating or as long as people keep commenting on what’s already there the topic remains relevant and more importantly visible, and could remain so for years or even decades.
Now let’s imagine the same project on a Redditlike site like Lemmy. Yes I can do the same thing as above, make a single post and keep replying to it, and people can chime in with comments. But because the default sorting algorithm causes older posts, no matter how active, to drop off over time, I’ll be replying to the void since nobody will see the post. In order to maintain the same level of visibility and interaction, I have to make new posts for each update. It’s less likely that my project will become an enduring part of the community’s history because it will either get swept away by new content if I use a single topic, or be scattered across several disparate posts.
Other differentiating factors that people have brought up are signatures and avatars. Avatars are really small on these sites and there are no sigs at all. These were modes of self-differentiation on forums, allowing individual users to be more recognizable and allowing connections between users to develop. On Redditlike sites you’re just a username and maybe a little icon, making it harder to see anything but disembodied ideas floating in the ether.
Yes I can make Lemmy behave like a forum by sorting posts by latest comment and using the “chat” display option for comments, but nobody else does that so posts will get swept away by new ones for them even if they aren’t for me, meaning the culture never grows around this system.
It’s not what I would consider a forum. Traditionally forums were built around an interest or topic, Lemmy like Reddit is a conglomerate of communities or subreddits some of which I’d consider forums. Lemmy doesn’t have the population to support nitch groups like Reddit does.