A couple of aggressive people and young men who have messaged me directly

Anyone half my age ..

Trying to cut back on creepy

Just not age or gender, other stuff though. I observe a lot ..

I prefer not to interact too much with under 30yr olds.

I don't allow people under 18 to message me.
If their profile is particularly disturbing I avoid them.

Females under 21

No just the incessant sexual remarks

I have a few filters

Not merely because of age or gender.
Reasons could be: topics they talk about, how they intereact with others, etc.

Not really. I avoid the ones I have the opinion that they're nutcases.

Not really, I avoid them more if they’re a-holes, nut jobs or energy vampires.

No one learns from everyone something or the other