there is a Discussion Only Cheaters & Hackers Thread and a Reports Only Cheaters & Hackers Thread.
when you are not sure, just check the Items against what is in the Codex > LegendEx.
also, only a few Crystals can be used on Eternal Items.
after checking things out, if they are cheats, or you are still unsure, then post them in the Cheaters & Hackers Thread. if you just want to talk about cheaters & hackers, go to the Discussion Thread.
hope this helps.