Yes, it's yet another ICO scam (why do people keep falling for this shit anyway).
The scammer disappeared with almost no traces left, right after the goal of 40 BTC was reached.

The pre ann thread was closed and the XLTH website was taken down.

If you can help in any way to hunt down this criminal, you're welcome to post here or contact me.
And please no accusations without hard facts. I am taking this one very serious.

Another thread that is being used for this purpose is this one by Jimmy Recard btw.

BTC address used during the ICO: 1J5RjgAHg8YPe6jF44vBJPF6Epwgf65PFY