My experience is completely different from yours. Out of the dozens of people I've spoken with about this stuff, I can't remember a SINGLE PERSON who didn't express dissatisfaction with at least one of: lack of privacy and potential willy-nilly snooping by CompanyX employee; arbitrary blocking and post removal without good cause; bad interface design; low quality of content.
I don't go fishing for it either, it just happens in conversation, although I sometimes am the first to broach the subject of social networks.
So I see the same dissatisfaction. I find that to be closer to slacktivism level of caring for most people though. If they stop using an app or don't use it from the get go for X reason, it usually doesn't align with how they're using other apps. So technically they did not use something because of the dissatisfaction you described. However, they aren't actually applying that even remotely consistently.
I don’t know any one outside some geeky sites and only one person personally who cares about any of this. Some do say lame casually. But it’s not going to be a deciding factor for using the app.
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To add on to the whims of the geeky communities. Some companies escape it more than others. Airbnb doesn’t get much shit for spamming Craigslist people in early days. Compared to the negative talk of Uber, Facebook, etc, they also get no where near any criticism for the way they incentivize negative aspects of their platform.
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All of this to say - there’s no real downside if money and power is the primary goal.