Someone I know that held a reasonable sized position in EQIX mentioned to me a few days ago that the accusations in the short report are relatively accurate after they did some digging when it was brought to light. They ended up selling out of their position.
I believe the main issue with the company is they were using accounting tactics to improve a non GAAP number Adjusted Funds From Operations. With non GAAP numbers, they can be reported however the company pleases, so it creates a bit of an issue in terms of transparency.
The thing is, Hindenburg is not a small firm either, and they've been accurate at a relatively solid clip. This leads me to believe that where there is smoke there is fire.
I would not be going anywhere near the company until the claims have been disproven. It's just speculation to buy now. It could turn out to be nothing and you make money. But if they have been artificially inflating AFFO, it is likely the price goes lower from here.