I’ve explored every single map to my level (except the ones like royal mausoleum 4f and sanctuary because there’s no kinos on my guild), almost done with all the quests, got a few grynas recipes and am quite ahead with the monster kills even for the lower level maps. If you ask me to repeat every single thing for a new character because either retreat shot gets nerfed or some bs like not a single skill of any class from rank 9 onwards can be used while mounted, you’re crazy.
There’s only downsides for people who want to play only with one account. There’s no advantages for those who want to lvl alts. Team level bonus is negligible. Try comparing it to a token or exp tomes, which IMC has been throwing at us for a month now (maybe expecting us to grind other chars? This might be news for IMC, but the tomes can’t be put in the team storage so there you have another downside…). I’d love a once a month reset