using them? nothing
but for your cartoon avatar? It's the most generic uncreative way for portraying yourself.
It's like the guys who draw themselves with a quirky funny hat to state that they are fun random people. It's just lazy design. Your cartoon avatar is not just yourself but also the logo of your work, you need to put effort on it.
Nobody is going to recognize generic hoodie guy #5203
Normies notice those kind of things, only that they aren't able to explain it.
Sometimes you get a free pass when either your work is amazing like >>104276507
or have a really unique recognisable style