I personally want to read comics on Webtoons, but I am off put by that very long format. I have trouble with long scrolls on Tapas, too. My problem usually isn't the story.
I don't have a lot of spare time to read scrawls and scrawls of comics, even if I want to. That's why I like the comics that are one or two pages long, or aren't scrolled to incredibly long. I have a stopping point I can come back to.
My other problem is I don't use my phone for comics very often, if at all. And scrolling with my mouse (since I work on the computer so much) starts to hurt my hand/wrist after a while.
That's just me. I really want to finish catching up with Leviathan on Webtoons, but again, the episodes are so long (beautiful, but long) that I know if I read a page, I have to make sure I've the time to invest in it (even the forums I have to set a timer for to make sure I'm not spending too much time not working XD)