Until the past couple weeks I haven't used reddit in years because its just a bunch of toxic echo chambers. Today I tried posting a helpful suggestion to someone asking for recommendations for speakers for their parents' TV. Several other users got nasty and a mod deleted our thread because I dared to suggest a soundbar in the "home theater" forum. I guess I'll try again in a few more years?
Reddit is best when the sub-reddits are smallish. Home Theater is gets pretty rabid when it comes to soundbars, that's the last place to ask or give soundbar advice.
Typically, the subreddits I like the best are splinters from the original. Typically these start after some sub-reddit drama happens and a moderate size group decides to go somewhere else.