What's the point of bug reporting?

Since I've played so much on warmane in the last 3 years I've picked up knowledge on lots of pretty major bugs, and someone recently told me that youre awarded coins for reporting of such bugs. So recently I've reported 5 major bugs/exploits that are all working and pretty game breaking, these bugs being 2 character instances stacked (invisible clone character), 400% speed 3 seater NPC mount bug, WG character instance bug (invincibility), 50 point talent tree with 51 talent unlocked and 50k hunter pet health bug.

After all the time I spent documenting, recording, screenshotting, and submitting these major bugs I've not even a word of thank you let alone points or coins from warmane and it is baffling and demoralizing, and my most recent report of the 50 point complete talent tree was completely deleted and I cant even check the status on it.

Whats the point of putting fourth effort in bettering the game and helping the warmane staff if they do nothing in return.