I had a difficult time trying to understand your writing, but in the end it seems that you’re actually proving the point of the person that you’re disagreeing with? Your example of having 1600 friends and then most people being content with ~10 friends is exactly what the commenter meant with devaluing social connections.
I dunno, it made sense to me. The simplified thesis (perhaps with my own slight spin on it) is that a huge number of connections never really existed, and what's observed as a devaluation of things with inherent value is really more like a realization that the things in question had little to no real value, and a calculus that does assign them great value (without significantly diluting the word "friend") is flawed.