Eventually you'll need to re-apply the thermal paste, but I haven't figured out yet how often that needs to be done.

I don't know if there a correlation between the cost of a mining pool and the performance.. you could buy the same car from two different dealerships ...

bch has way better odds than btc but still very unlikely with a solo miner.

You never want to do this because any online wallet can be hacked. It happens all the time.

You never want to do this because any online wallet can be hacked. It happens all the time.