I think my biggest pet peeve about other artists is when the beginners try too hard.
And by that I mean a very long list of threads on the forum that are always about the same thing:
Artist A, the fresh baked cookie in the webcomic world posted 3 pages of their first comic ever. Yay! That's great, welcome on board. Then, right away, they go to the forum and already ask for critiques. Well okay. There's nothing much to critique tho. A week or two later Artist A is disapponted, that they have only 10 subscribers so far and they think something went wrong within their 6 pages of comic. A month later they burn out, because the subscriber count is stuck at 12.
And I'm not trying to be mean or start a war with the above statement. But I think the beginners have too high expectations, and their idea of creating webcomics is just about an easy peasy way to get popular. Why else would we have multiple threads about "hey hey how do I attract moar peeps to read my awesome stuffs???" and such. It all boils down to attracting as much audience as possible and bathe in attention, which is measured in pageviews, likes and subscribes.
It would be nice if they realized it's a lot of hard work to get where they want to be, and stop the rat race to glory.
And to avoid people twisting my words into something that wasn't my intention, I want to say this: I'm not trying to say that Artist A is a bad person, or stupid or anything for the things described above. I just want people to know that webcomics shouldn't be about forcing yourself to please the audience's tastes, and selling your soul to webcomic gods to get over 9000!!! subs in one night.
I think it should be more about finding people who enjoy your comic just as much as you enjoy creating it.
I hope nobody will maul me for this, I just wanted to get it off my chest...