The stream of consciousness posts is my pet peeve.
A lot of open source projects insist on using Telegram or Matrix instead of an issue tracker or forum and have the same problem. If you want to spend 90% of your time answering the same questions again and again, be my guest, but as a user I won't do more than a cursory search of chat history, and won't try to follow intermingled replies anymore. I will simply ask again and explicitly say "the chat history on this can't be followed and there's no forum, so...".
Professionally I also won't try to keep up with most chats. Someone mentions me on something and if I can't read their one message to get the context needed, I just reply with "I'm not readinf everything said in the last X days. What's the context?" and make them re-explain it.
My company even recently added AI assist tools for our chats, and I occasionally will use it to summarize everything I haven't read just to see if there's any topics I should know about. But I won't use it to try and get context for a question I've been asked.
The chat systems are basically like being in a physical room with everyone coming and going and having their own verbal conversations around you. I'll pay equally as much attention and effort ignoring it to get work done, and ask people to repeat things if they suddenly pull me into a conversation. I'll also drift out of conversations the same, but now they can't see me going back to work to take the hint its time to wrap it up.