I know of a few ways they can do it.
so to everyone here that is renting from NH / WH consider that
f2pool can send dead hashers to WH/NH with ease
Can you explain what you mean by "send[ing] dead hashers?"
When you pay for miners at *Hash - you have no idea what the miners are and what they are doing.
*Hash don't care either coz they get paid BEFORE you mine and they wont lose anything.
The people who own the miners will get paid no matter what also.
Thus someone could provide "bad hash power" on *Hash and no one would know unless they mined a VERY large amount and kept track of the statistics ... ... ...
But my question is more along the lines of what exactly
is "bad hash power" or "dead hashing?" I realize that service drops, latency, *Hash's algo switching interruptions, etc could result in stale shares, but apart from that I'm not clear on how a person could dispatch miners that are "dead/bad."
Software dropping shares/blocks, or even using faulty hardware that has no use.
e.g. someone may have hardware that can't find blocks that they would normally not use it at all, or have given up on coz they can't fix it for a reasonable cost, but ... point it at *Hash ...