Worth remembering as well that just cause we have the coins, doesn’t mean we’re free to use them. Many characters have appends locked behind yet-unreleased mats (and even though Skadi doesn’t, she does demand eggs which remain in high demand at least until Castoria is out of the way), everyone is competing for lores (and we may not see the uptick that JP saw after they got coins, since we got ours so early), QP stocks aren’t unlimited and with most Skadis at NP1, her coins aren’t exactly overflowing either. Plus, Summer 4 is a bit of a workhorse of an event, so it’s not like people are ready to invest a huge chunk of time and effort into researching and planning out the best way to make use of coins they didn’t already have plans for.
I’d at least wait out a lotto before thinking too hard about what people have done with their coins so far. I don’t think a lot of people will bother unlocking Skadi’s ML - with the sole exception of Caren comps and anti-IK builds, her NP gauge is basically irrelevant so long as the DPS’ gauge is full - but until we’ve had a chance to actually amass and assess resources no one’s really done anything beyond feed their favourites.