Wow, this is interesting.
The content of the original post in this thread is actually copied and pasted from other sources. The OP linked the word "petrolium" in his post to a commercial coal gassification web site. Which I've since de-linked (and banned the OP).
Normally the link spam we get is mostly to unrelated sites, and occasionally to HHO commercial kit sellers. This is the first one to a coal gassification company!
So this is either a commercial
link spamming effort trying to take advantage of EM's popularity & search rank, or possibly an example of
astroturfing to raise the company's profile.
Instead of deleting the post, I'll leave it (and this explanation) as an interesting artifact....