How developpers made dg reward useless

[Durko]

Doing wb and daily quest every day since the update and only had 2 monster key.

That's starting to be significant and show the low drop rate developers gave to this keys.

As I already know I won't buy these keys (they're so expensive...)

I just don't do dg because grey chest is almost useless, and what about having a chest you can't open in your inventory ? (Disgusting developpers strategy btw)

NVM I'll wait this big key then i do dg.

Finally i just loose the habit to make my dg everyday and lost 1 of the 3 things (dg/pvp/wb) i used to do everyday in the game.

If i write this topic, it's because today is the first day since i started to play this game 4 months ago (a lvl27 and a lvl 14) that i don't do wb.

The reason can be multiple, but in a way that's started with the feeling it was useless to continue to do dg.

I'm wondering, do developers have a tools to measure the impact of an update (and I mean other than cash earned since two weeks) like trust of the users in the game, opinion positives, advice to a friend etc.

Something to consider, you earn more money with 1$ a day during 2 years than 5$ a day during 2 weeks