Definitely not in depth by any means. I think that corresponds to their goal (if I understand it correctly) to bring philosophy/sociology/art etc into a public consciousness to help with general life. A lot of philosophers did not talk about our day to day lives (especially some that appear on that channel), but they want to extract the bits that can help people and can be understood by a general audience without having to read Hegel.

I don't think reddit has had any negative impact on my ability to hold reasonable discussions. We have to admit that there are some aspects of reddit that are useful, e.g. specialized and dedicated subreddits (subreddits dedicated to a specific musician, for example, are very useful). Larger populations have always been a problem on the internet w.r.t discussion quality, but smaller subreddits are great for finding a (usually) chill and focused group of people. The drawback is that specialization itself, however. If you already know what you're looking for there's a subreddit for it, but exploring new ideas and discovering new interests is harder. I've never had any luck with the random subreddit option.