Doing the multiple account thing isn’t as easy as it sounds though. Some sites like Reddit make switching between accounts incredibly easy while others aren’t so much. Plus laziness kicks in and soon enough your Brand Name Account gets tainted and you have to consider taking it out back to the dumpster.
Such is life I guess.
And it's as easy to dox yourself by responding with the wrong account, as I have seen multiple times on Reddit.
I do this at work too.. where I have to have different user profiles to emulate working as an admin, staff, client, sub-client. Blue seems adminny :)
There was a "show hn" many months ago that did stylometry on HN commenters to show which accounts were most stylistically similar; I ran a throwaway account of mine through it, and it showed my account in the top 3 - which was impressive.
Having multiple accounts won't save you when your own word choice, grammar and style can uniquely identify you to anyone sufficiently motivated to link your disparate identities at any point in the future. The author even said their tool was rather basic; IIRC the basis was all pairs similarity on n-grams
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