Why do gamers try as much as possible to avoid graphic cards that have been used for mining before?
Think of it this way,
Would you buy a car whose previous owner used to drive the shit out of it and has higher mileage, or would you go for one with a lower mileage if you have some extra cash to spend?
The cards used for mining run almost 24/7 so while some people wouldn't care so long as the cost was friendly, if I were in the gamer's shoes, I would try looking for other options if there were any.
Ok I heard you but.....
1. Mining 24/7 means your gpu are in the most stable state.
2. Miners cares about power consumption and they go with minimal watts to safe electricity.
3. All algorithms aren't the same, some are very healthy for GPUs and very few aren't.
4. Gamers dont care about power consumption, they operate at full power.
5. Games render both core clock and mem clock at once but mining use one more than the other.
Still I am standing on my point that gamers know too less about graphic cards and miners understand graphic cards more.