I posted a few of my redone pages for my Beautiful Lies comic. Almost instantly it grabbed peoples attention, probably because of my style. Which is nice. However, my rating is kinda low and I think I know exactly why.
LINE Webtoon is more specifically for webtoons, and webtoons are the very long pages that are all connected (Up-Down). Tapastic is more webtoon friendly as well but there have been penty of comic book and manga styled webcomics here, like mine. But LINE readers are very picky about color. My story is manga like and naturally, no color.
My impressions is that LINE is great but there is probably a restriction to how "inappropriate" you can get in your comics, and it is specific in its wants: Webtoon format and color. Unless you can impress the picky readers with your amazing story and art, they're probably gonna give you shit for it.
I plan on still trying LINE but I like Tapastic more. THERE THAT'S MY CONCLUSION