I do. I think it's essential if you've a website/blog or occasionally someone wants to contact you personally regarding one of your comments. I find it extremely frustrating to read a blog post, notice an error or a technical configuration issue with their website and then not be able to let the author know. Please make yourself reachable.

I run my own email server and don't do any spam filtering, so I definitely receive more spam than others (0–2 per day), but Thunderbird always puts them into my spam folder.

I hope to eventually add a spam filter in Postfix to deny at the SMTP level. However, configuring DMARC verification and requiring proper RDNS already cut the spam to a third.

I also recently switched to the hexadecimal encoding explained by u/bitmedley on my website. There's been no perceptible change in spam from that.