Ok, I loathe to set rules but the internet is full of bad apples without easy access to a good therapist (or a good hug), and I want this to remain light and fun.
You will have your comment deleted if:

You are being a d*ck to other people.
Racism, homophobia, misogyny, trolling, ablism, bullying, transphobia, violent language, etc. Just really if you are out to hurt someone or choose to use words that do – I have a zero tolerance approach. Stop procrastinating and go get professional help.

You are being a d*ck to me.
By all means be critical and give feedback on ideas and musings, but if it’s meant to hurt or be deliberately mean then, again, go find help – it’s never too late.

You are deliberately spreading nonsense.
If the comment has nothing to do with the post it finds itself under and you are spouting utter drivel (think ‘ADHD doesn’t exist’ or anything toxic gleaned from the manosphere) then it’s gone. There are plenty of other places to do that (Hell, for example).

You are trying to advertise or sell things.
Leave Papa Capitalism out of this. Please, just one space where we can enjoy curiosities and interests without unwarranted commercial distractions. Our minds are free.

You have chosen to spam.
Really, we get bombarded with so much nonsense on any given day that I will protect this space. Go spam someone else.

You decide to stop making it fun.
Authenticity usually brings ‘quirkiness’ or ‘unconventional’ approaches and thought processes when unravelling an observation or curiosity. These are strongly encouraged and celebrated here (not least because it makes it more fun). Shaming and belittling isn’t.
Now go and have some fun.