I noticed mention on Discord that he needed more people to start migrating to Kumos and thought I'd offer some feedback on what keeps me primarily on Legacy. Hope this is the right spot / helpful!

One of the main reasons I continue to choose my legacy quests over kumos quests is the significant difference in value. I make double the sP profit on legacy as on kumos. This doesn't include Shinwa items which can be profitable, amulets which can be profitable, the additional tokens, and the morty cards (which I often get one each day). Kumos quests just barely feel worth doing, and are honestly a bit discouraging. Right now making 4m-ish a day on quests / item sales from quests feels reasonable and like it's worth it and I can save up for things in a reasonable amount of time. Making 2m sans extras on the kumos quests feels almost defeating. There's also the frustrating issue of having to quit some quests on Kumos every single day due to inflated items. I'm not sure if there's a solution here, but it does seem like this was / is never an issue on legacy so perhaps there's something to be carried over from there to help? There's also still about a 6sec lag when I complete a quest.

I'm trying to do my quests on Kumos daily now, and am trying to use the site more often in general. Just wanted to give some feedback on my main hangups in case anyone relates.

I also created a feedback board about the forums, as that's the other main thing I do on the site and I find Legacy far more user friendly visually.