When they have extremely LQ avi. Yes
But other than that, no.

Not unjustly. If the quality of their posts is poor, then I associate those characteristics with the avatar and then I become irritated and roll my eyes whenever I see it.

Yes.

i don't take many things on the internet seriously

when it's not 125x125 and it has a really bad quality

yes

.

If it is of somebody I dislike then I will be less likely to agree with them on something. If it is annoying (e.g. The .gif of Jessie J doing that weird cross-eyed thing) then I will judge them as inadequate for access to the internet.

I never noticed how giraffe-like Taylor's neck is.

Static = Lessors
Gif = Legends

Yes.

There's no other way to judge them if you've never seen them around.

Edit: oh, you could also judge them by their username, I guess

i hate most static avis but mine is tha bomb

I love Kesha please make a gif. I hate yours (no offense)

Someone called me a hoe JUST the other day.

If people were to judge me by my avi, they'd think of me as a ****.

Yes.