Addendum: Babies I love you and I'm not saying you need to spend money you need for groceries or bills on art you can't afford.
I'm saying that if you want artists to like stay here you gotta be okay with artists making money. With artists charging more than 20 dollars for commissions, with artists reblogging their own commission slots a hundred times over, with artists listing adoptables. With artists who work for big studios joining the website.
You gotta accept a degree of 'consumerism' because artists who make stuff are often also a small business trying to make money to eat.
If you wanna go the extra mile and support artists the best thing you can do is reblog stuff. If you see fanart you dig, hit that reblog show it to your friends, if you see original stuff you dig, hit the reblog, share it with people.
If you can't afford monetary support that's fine but perhaps someone who follows you sees that art and goes "Well fuck here's my wallet lets go get some art"