Hey, here are some examples of guidelines for my blog. And here are some examples.

No Hate Comments: 

I don’t want comments hating on what i have posted.

Comment what i could improve on:

I would like to know what I could have done better on my post so that i could improve on it the next time I post something here.

Don’t make things up

Don’t comment something that isn’t true.

Avoid using Profanity:

I dont want any comments that have profanity in them.

https://www.theadventurouswriter.com/blogwriting/how-to-make-good-comments-on-blog-posts/