I just list my email address. FastMail's spam filters are good enough that I rarely get spam so it hasn't been a problem. Occasionally I'll get an email from a dev asking following up questions or if I can help them with their code. It's nice to know that it's not just my mom reading the site.
That's what I did too. I added a mailto: link to the Hugo post template that also prefills the subject line with the title of the post when you click on it. The interactions I've had with this method feel much more meaningful to me than the average comment thread, for all the reasons @sph already mentioned.
The site has been up for over 20 years, I think I added the email address about 10 years ago. If it was a mistake and would result in massive amounts of spam surely I would have felt the effects by now.
See: https://developers.cloudflare.com/waf/tools/scrape-shield/em...