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It's fine to have a jon.arbuckle@example.com email address for professional stuff, but don't use it anywhere else.

Avoid using the internet at all costs.

Don't put all your eggs in one basket. I always assume that eventually someone will recognize me, and then they'll have access to my entire post history and anything I've shared under the assumption of anonymity. That's why I create a new account once the previous one hits about 1,000 comments.

Even if you're not worried about stalkers, it's reasonable to assume that within a few years you'll be able to take someone's profile, feed it into an AI for analysis, and discover private information that the person never knowingly shared. The amount of detail Facebook can already infer about people simply based on the posts they've liked is scary enough - now imagine what insights could be drawn from a 15-year-old Reddit account's entire post history.

Remember to strip the metadata from photos you post online.

Don’t tell someone when you live in Omaha.

Have unique usernames.

Don't be like me and use the same username across different platforms.

Don't tell people what your username means

Federate your self-expression.