Earlier quoted context omitted.
> That said, as someone who prizes ethical behavior, it's not possible to practice this and remain wholly honest without some sort of ethical loophole like "character work for entertainment only". A persona requires misrepresentation, which is not the same as de facto anonymity. I don't think the persona needs to be completely falsified. Rather, you consider which topics you engage in on a given account. For example…
Do you try to keep them separate in the sense of not being connectable? That could be hard, as writing style is a pretty strong give-away (as recently demonstrated just here on HN where somebody wrote a very simple tool to detect alt accounts). It's ok if you don't. I'm just wondering if it's even worth trying. The persona strategy could be worthwhile for simple tracking purposes, but for somebody actually trying, it…
I think part of the persona creates different writing styles - my other account(s) have never been rated close to each other. For Reddit, my other account is just my default. I only switch over to tsumnia for /r/professors, or other coding-related subreddits these days. Reddit Enhancement Suite helps out nicely for that. My other account(s) never really write enough to generate enough substance for comparison I think and never interact with each other (not replying to myself or something silly like that). Sure its possible, its just... not something I've had to worry about. tsumnia writes long winded responses and my other accounts... don't. If anything I'd be impressed and nerd out on the math if someone could connect the accounts.
> it shouldn't be hard to link all your personas, given enough data
I'm not some big name that I'd really need to worry about that. Even if I became one, like I mentioned I'm not trolling, flaming, or being obscene in the other accounts, just writing about my hobbies. Things I openly admit to in real life, just don't write about. It may be harder if an account is some super personal stuff like sexual orientation / gender identity, but I don't do any of that. Even if they did impact me, those fall into things I just don't bring up on the internet. Likewise, I imagine it may be harder for women that are dealing with online stalkers, but again, that hasn't been something I've had to deal with.
Plus, any organization that REALLY wanted to find me can simply reverse lookup the account IP addresses anyway. If I think an account that I want to remain private has gonna a bit too personal, I simply retire the account name. It can be annoying if account karma/points/whatever is "important", but... eh... I made plenty of DnD characters over the years, I can start using another character's name or something with a pun. Internet points only limit what I can and can't do on a site, nothing else.
> maybe one should avoid posting with real name altogether, anywhere.
That's always an option. Since I used tsumnia for so long, I sort of just DECIDED to let it be public. I had more or less doxxed myself (or narrowed down who tsumnia could be) before I openly said it was me. No different than a YouTuber doing a face reveal, except I don't have millions of fans. Instead of retiring tsumnia, I acknowledged it and created a new one that doesn't connect to me. I imagine that's how lots of usernames start - being anonymous but occasionally they drop a nugget of personal information. Those accrue over time and boom, its an alias. I'm a little more cautious to drop personal information on the other accounts, but I think its because I can always use tsumnia for those situations.