I agree with the sentiment, though the Like button actually serves a very useful purpose. It eliminates posts that only read “thank you”, and this greatly contributes to the signal to noise ratio. It eliminates clutter, essentially. Which you can imagine would get particularly bad when there are dozens of folks thanking a poster in a much larger forum, and of course without a like button the alternative in that situation would be to simply give no positive feedback at all - which actually would be largely the case anyway without a like button, rather than people writing out “thank you”.
The gap between something requiring virtually no effort and just a tiny bit of effort is actually huge, user interface studies show that largely people just can’t be @#$%'d, lol.
Brings to my mind perceptions of time, how with slow computers things could take a long time to load, now if they take a second longer than usual it feels like an eternity. Some people look at this pessimistically, that it’s some sort of fault with the latest generation, but I think they’re very much mistaken. Essentially because: expectation for constant improvement rather than stagnation is wonderful, and more importantly the relative difference between small numbers is greater than with large numbers, which is to say, if a web page takes 30.25 seconds to load back in 1995, compared to it taking 30 seconds to load, no one gave a damn, that’s only 0.8% slower, whereas now if a web page takes 0.5 seconds to load, rather than 0.25 seconds, that’s indeed twice as slow or 50% the speed. Given the relativistic viewpoint that I believe all of humanity shares, i.e. we measure things in how they were to how they are, because there can be no “absolute” sense of if something is good or bad without anything to compare it to, then indeed the latter scenario taking 0.25 seconds longer to load is more egregious than a site taking 0.25 seconds longer to load in 1995 and the expectation for something better is perfectly justifiable. I think this is the same mechanic operating when it comes to the ease of clicking a button vs. leaving no feedback. The user wants to leave feedback, but if it isn’t beyond-belief-stupid-easy, then it’s hard to blame them.