And there's a beautiful little tool named Bridgy that can pull replies/mentions off Twitter and Facebook and turn them into Indieweb-able entities. It's all really quite great, but of course assumes the terrible, terrible inconvenience of running your own website.
Bridgy is only able to see the comments one's social media account, like one's Facebook account, gets notified about, right? If some to me complete strangers start talking on FB about a post I made, I won't get to know about that via Bridgy? But if some friends of mine, whose comments my FB connected Bridgy account gets notified about, start talking about the blog post, Bridgy detects that?
1) they (implicitly or explicitly) claim that RSS was at some point popular (with "normal users") in some way that it is not today, which is wrong.
2) they completely ignore the fact that RSS today is significantly more widespread than it was a decade ago.
Yes, Google Reader is gone. Get over it. Flipboard and similar have heaps and heaps of users, and they're all RSS-based.