I wish Mastodon (or any social media, really) had a way to create "channels", so one can discuss specific topics separately, without the requirement to create a new account each item.
No notions of threads at all in IRC, it's kind of the worst for this actually. Zulip is the only player doing it properly.
@bnjbvr isn't it hashtags purpose?
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!