Wrote them 2 tickets, one with the exploit and one with possible Feedback of why people fall back to save scumming in the first place.
The chance to even spawn wooden Chests in every 80 Stamina Daily (except Gold Rush) and the existence of 3* in every Premiumgacha.
When people try to abuse a system then yes, sometimes they are people who just want rewards as quick and easy as it gets, but sometimes the games mechanics lure you into that trap. Which can be fixed, seen as they fixed some things in the past and are apparently vocal in the Discord Channel.

And yes maybe it was bad to post about, never thought other people knew about it. But better to talk about it and make other people aware of what can happen. I don't think a large portion of the overall community visits this forum. And multiple tickets attract more attention than a single one.

I'm torn on the 3*s in premium Gacha

When starting they're OK and giving players too many 4*'s early would be a little too much...

I would say something like when you hit level 50 they go away but then you'd never be sensible spending gems before 50

A super premium spin maybe at 7 gems would seem a nice middle ground....maybe no 10+1 to really make the 50 spin a gamble at 4.5 gems a spin, and the premium your 'safe' bet when starting to get a few 4's, then when they're meaningless do you keep spinning for the 4*'s and likely skill up or equip up fodder....or gamble for 5's and 6's

Save scumming for 'good' results takes some of the fun away, and if it leads to penalising me for those odd times my net decides not to play ball that's not great.

Well I did use it twice to get 3 medals on ?-4, 120 stamina for your girls to take the wrong pathing is incredibly punishing.

Would be pretty lame if I get banned for using it twice though.

by making this post, you also happened to inform potential bug abusers who did not know about this in the first place, so now you're effectively introducing bug abusers to nutaku fkg. especially when you mentioned that you did it on purpose on the 1st page, which equates to abusing the bug pretty much. If you wanted the bug fixed, simply sending a game support ticket about it would've sufficed, no need to inform the community.

ideally, the community should NEVER know of any methods where a bug can be abused.

Just remember RNG-sama is always watching