I've been writing publicly on the Internet for >15y, under my real name (www.jefftk.com), and no one has given me a hard time for old posts. Quite the contrary: people have often written to say they found my old posts useful or otherwise interesting.

I do think it might be different if my entire online presence consisted of a handful of posts written a long time ago, but anyone trying to get a sense of me from my writing can tell very quickly that I have a lot of views about a lot of different things.