I have been on the internet for years, even before most of the young people on social media were even a sperm in their father's testes. Haha, joking aside, I'm not as old as you think, for the internet is not that old.
Anyway, not to digress, in the early days you could have a discussion about something and you would be shown the same respect as if you were speaking face to face. And being in front of an audience, you wouldn't dare bring shame on yourself by acting without normal good manners.
Since the internet proliferated and everyone now has access to it, things have changed. Few people now use heavily-moderated discussion forums, most have gravitated towards Reddit which I think is unarguably the biggest discussion forum on the internet.
Reddit, in general but not always, is a left-leaning audience. That's about the only generality that can be made. Should you disagree even the slightest with anyone there, you will be met with a volley of abuse and vitriole. Nobody will care, least of all the moderators.
I know the whole phrase about sticks and stones etc. but it is still a shock to receive such abuse. It's a bit ironic because the left often claim to be the 'oppressed' and yet in this case they seem to love oppressing others.
By the way, I consider myself a centrist, in case you are wondering.
The ironic thing is that an alternative forum which they often deride, 4chan, is actually a much nicer place. It is claimed that 4chan is a hotbed of 'alt right' and 'white supremacists'. I can honestly tell you that this is not the case. It is actually a truly international forum. If someone talks complete BS, they are held to account and embarrassed in front of the whole group. Debate there is actually healthier and it is not the echo chamber that Reddit is.
To reiterate, I still enjoy Reddit a lot, there is no better place to find interesting discussion on very narrow subjects of interest (literally, there is a subreddit for almost anything). Just be prepared for the occasional highly strung person - best strategy is not to reply to them or engage with them but just block them.
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