Becoming a featured artists mean you will get paid per month for keeping up to date with your comic. (I'm not sure how much exactly, but I heard aroung 2,000) this is why it's pretty hard to become a featured artist, not everyone and any series can. And yes, I do agree with you on how some series are more popular on Tapastic than Webtoon. I think it just came down to the obvious different in audience and taste between the 2 platforms. Like I said, Webtoon is more of a teenager place with pure readers, while Tapastic is filled with creators and often has a more refined, particular taste!
The star rating system can be suck! Sometimes people would just downvote you to upvote their favorite series. By this time I no longer bother about the rating system anymore. What I like about LINE is that they have many top 5/leaderboard thing to give your series a chance of popping up on the "front" page of discovery section. If you have high rating, your series can get on the top rating board. If your series has a lot of view, it will pop up in the specific genre top 5. Etcetc, honestly their discovery section works a lot better than Tapastic's trending, popular and fresh section imo.
@marisebastian78 A lot of series that used to be on Tapastic got picked for feature and now only live on LINE! The latest series that got featured was "Ghost among wild flowers" whom I remember seeing it used to pop up occasionally in Discovery section and on Tapstic a long time ago. It makes me happy to see series I follow got picked