Why a blog, not social media?
The majority (if not all) of the commentary on social media is essentially useless for understanding what's going on and what might happen. Not just for this or that topic, but for almost all topics. Social media is primarily about what Team you are on (Team Libtard or Team Conservatard) and then what random fandom you align with within those two larger groups. All of your opinions, policy positions, likes and dislikes, friends and enemies, etc are determined by that.
Your full-time job is "Owning the Libs" or "Owning the Cons", not figuring out what's going on, what might happen, finding some new angle (or adjusting the theory if proven wrong). You're essentially a propaganda-maker: if MY TEAM does this, then it's good. If THEIR TEAM does that, then it's bad, only filtered for whatever niche group you happen to belong to. You're also somewhat of a therapist, in that you try to present information in a way that will make members of your team avoid suicide and feel like they're accomplishing something meaningful, while preventing the other side's losses as the end / it's over / etc.
This makes them useless for providing real knowledge, since they're far too partisan, hysterical, and retarded. If your full-time job is creating, and consuming, this (sometimes decades-old) partisan slop, how the hell will you know what's happening IRL? Unfortunately, a lot of that retarded brainrot also leaks out into the real world, where it infects conversations and prevents people from understanding what's happening.
Social media platforms are also insanely elitist, censored, and restricted. The majority of genuinely popular opinions are not allowed or would get you banned / down-voted to oblivion, and they abound with annoying faggy commissars who live to punish the wicked (anyone who doesn't agree 100% with them on whatever micro-issue). They're some of the least tolerant places in the world, when it comes to diversity of opinion. A blog is a good way of getting these thoughts / emotions out there, but without the inevitable hostility and censorship that comes from joining one of those platforms.
Almost any site that primarily reacts to social media discourse will inevitably melt down into this kind of tribalism, too, and suffer from these same issues. Think of a blog as a kind of deliberate stewardship / health effort: preventing infection from that kind of garbage. Not to sound too highfalutin, but you know...