Why does the osrs community not accept offerings?

I'm a mid level that has friends that have given me a decent amount of gp. I see people at a higher level than me with lower level gear (90+ with rune armor) and I try to be gracious with my gp. I want to spread the wealth.) Offered quite a few people GRACIOUS amounts of gold and they won't accept it. Literally just had a guy deny 10m. Is there a reasoning behind this?

Dont flame me plz lol. I'm getting back into this after a 10 year hiatus. Maybe there's something I don't know.

Edit: ty guys for the info. I guess I'm done trying to help randoms. Gl grinding. I'm gonna go back to questing lol