I've joined a handful of GM events during my time playing on Muh, some I remember in particular were the baby escort, the 4 keys quest, and MVP parties.
However when I participate in these events I always feel disappointed by the payouts and feel discouraged from joining future ones.
For the 4 keys event I didn't know how the payout system would work, so after 2 hours of questing I was rewarded with a grand total of 6 muh coins I barely managed to steal off the floor.
For the baby escort event I managed to grab a single BSB through sheer luck despite the fact I would've been able to farm over 8x that amount in the time spent getting ready for and participating in the event.
And for the MVP party event out of 600 MVPs spread across 80 players I was lucky enough to scrape out 3 BSBs from varmundt mansion MVPs which is a good deal, but I doubt everyone else was nearly as lucky as I was.
My overall experience with GM events is while they have a very fun premise to play, the payout at the end always leaves me with a sour taste in my mouth that makes me reconsider wanting to come back, knowing I could've gotten significantly more elsewhere.
I enjoy playing in these unique environments being setup but due to the nature of RPGs having power growth as a core point of satisfaction, I don't feel satisfied knowing I technically would've been much better off elsewhere if I wanted power, cosmetics or most other things.
This feels like a shame given how memorable the events are, it would feel a lot more encouraging to come back if they rewarded more over normal farming rather than less.
Considering their infrequency, I don't think it would be kill the economy to have a one-time burst of extra goodies every once in a while and would encourage more people to get into them.
In short, please increase the reward payout from GM events to feel more inline with the time spent on them.