I don't think 1080TIs need risers, never heard of anyone having a sufficient need for these with their 1080ti rig.
What on earth are you talking about?
It would have been nice if you actually brought something to the discussion. I'm assuming this means you disagree, but you've not explained yourself or clarified a position. You can set up a perfectly fine mining rig, without risers of any kind. I've known many people to run dozens of 1080tis at once that have never even considered risers. There are endless amounts of problems that pop up with the usage of risers and the benefits they provide are mostly nullified by better planning/design.
Their usage can be avoided, while saving money and without losing power is what I'm talking about. You can set up a rig with less of a chance of failure, for cheaper without them.
Let's assume you are hooking up 6x 1080ti's to a system board that has 2x pci-e x16 and 4x pci-e x1 or whatever. You could plug in two cards directly, and for the other 4 are there different options other than risers?
Just trying to clarify as you say their usage can be avoided but I don't see an alternative mentioned. Thanks!