Well, while I'm a professional artist, I am more of a hobbyist comic artist, so that makes it worth doing. It's where I can be less than perfect, where I control my own deadlines, where I can give myself a little bit of a break. I have always had the urge to tell stories, and this is just one of the formats I tried it out in, so it's not comics or die. Don't get me wrong, I still want to be seen and acknowledged--that's why I'm putting this online, and I think having that reality of "this probably won't make it" is a pretty healthy mentality, since often these websites to really, really push a pipe dream of getting famous overnight (which is improbable.)
However, the dream of my hobby making a little income, while that isn't award worthy, would be really nice in situations where my day job has less freelancing available. Also, we all need to gain followers as freelance artists and always have something available to sell to people looking in my direction, and so the comic does help to show that I'm constantly working and creating content, even if other things I do may be NDA or may just be...not happening ( a lot of illustration never gets published) and so it gives me something to post every other week--when sometimes with illustration, you can be hit with the reality that creating constant original content at the level of polish that illustration needs to be is really draining. A personal portfolio piece can take like over a month if it's really good. But, with a comic...you always have the framework for an update.
That and down the road I would like to be hired for more story stuff, so doing comics, while that will probably not be my endgame, people notice that I have an eye for worldbuilding and characters, and hopefully that will give me more illustration jobs that are actually narrative, and less about like...boring business stuff.