I'm not worried about HN, it's who else finds my HN account. It may be possible to identify you through your writing soon enough. And there's not so many software engineers in the US. Not worth the risk.
I don't see why making wild predictions is a problem?
I don't have any static social media accounts besides placeholders I use for work related stuff. Every 3 months or so I clear my history and start fresh. Paranoid? Probably. But I don't like the idea of leaving a digital record of so much of my life
This would be a huge red flag against you when seeking a job at Silicon Valley companies - which are notoriously liberal leaning. "Cultural fit" is what they are looking for, not diversity (of opinions).
Until there's privacy laws preventing such things it's better to be anonymous
Don't see why that wouldn't hold here on HN as well.
Expressing political opinions these days is a dangerous game. And more and more things are becoming politicized. Remember Coinbase? They were crucified for declaring that they just want to work.