Earlier quoted context omitted.
What's the benefit? It sounds like you might have to explain yourself one day if someone posts something racist/horrible.
I look at it differently, even if someone isn’t going around posting racist/horrible things, people and tastes change over time. I’ve been a part of fandoms that are now seen as cringey or toxic. I’ve also grown up more as a person and I look back at a lot of my old comments as sophomoric. I write differently, and my opinions on things have changed as well. I’ve had people dig through my post history on sites like Re…
—BuyMyBitcoins
Joking aside, there's definitely value to rotating usernames frequently. I've started using random strings on various sites because I really don't see an up side (for me) to being trackable from site to site and definitely across time. (I use very long random strings for my banking usernames because I don't trust them to have enough bits of entropy in their passwords.)