I agree with the sentiment, but it's unrealistic to think bad-mouthing Reddit is just going to end. It's similar to a bad breakup for many; users who had spent years maybe even a decade on Reddit saw it go to shit, were most probably badly treated. Naturally, they're going to vent, and take delight in pointing out why Reddit is a poor choice. This will fade over time.

If you're not interested in something, it's a better strategy and less hassle simply not to read it rather than complaining about what people (apparently) do want to talk about.