Hi. Lemmit developer/owner here.
You are not the asshole. As you are quite aware by now, the whole point of the bot/Lemmy server is to copy content from Reddit.
I know the bot can be quite spammy, and I have no idea why people Request subreddits like these, let alone subscribe to them - since it doesn't copy any comments, even when it EXPLICITLY states so in every post.
When I created the bot, I did so specifically for subs where interaction with OP and other community members is of little value, like !itookapicture@lemmit.online , !steamdeals@lemmit.online and, errr, "grown up subreddits".
That so many people subscribe to "cliffhanger subs" (just the questions without the answers) is beyond me, but it's a side-effect of the model / open market, I suppose. I do intend to keep improving the bot though. Short term plans are for adding some thresholds of minimum karma levels before archiving a post, and putting a sticky on each community that suggests actual, organic communities rather than this.
My end goal for Lemmit is for it to be unnecessary - that all the content people love is created here. But I do know it's hard to let go of some of the content treasures people leave behind.
Last but not least: I sincerely encourage everybody who dislikes the bot to block it, or to ask their server owners to defederate from lemmit.online if they dislike it. That's the beauty of the fediverse, in my opinion.