That is my experience too. It’s because there is no distinction between posts and comments, I think. It’s about as interesting as my sms chats with friends would be to strangers.
I don’t know how frequently this happens, but my experience is that a link to a lemmy group was deleted by mods. It was very politely worded, and suggested and alternative community on Lemmy, and also noted that there’s no reason that somebody couldn’t read both communities. It was still deleted as “spam or self-promotion.”
That could just be a maturity issue with the mod who deleted it. It could also be that Reddit itself is doing it and simply said it was done by the mods of the group.
I’m sure that the “three months of work” was completely shit code. Anybody who is unfamiliar with source control (or even backups!) is prone to making stupid mistakes. Republican voters are likely to have a similar experience over the next 4 years.