There is nothing coming close to /r/steroids on Lemmy. The reason that subreddit is so great is that the moderators there are very quick at deleting noob questions that are answered in the wiki, and will quickly call out anyone giving dangerous advice.
Even on reddit the competing subreddits like /r/PEDs and /r/testosterone are absolute garbage that probably got dozens of people killed from a heart attack or stroke at this point
Aux@feddit.uk 5 days ago
Lemmy is nowhere near the wealth of information available on Reddit. And if we’re talking about hobbies, then literally no one gives a shit about Lemmy. The whole of the Fediverse has only 50k daily active users, most of them are on Mastodon. Lemmy is just a tiny fraction of those 50k. The main 3D printing sub alone has more active users than the whole Lemmy.
That leads to a situation where knowledgeable people from the industry and hobby leaders don’t post anything here. I’m not even sure many of them even heard of it.
So, if you want some help or to learn something, you either go to specialised forums or to Reddit. Lemmy is for memes and throwing feces at each other. Which is fun.