I'd rather not post in that thread anymore to avoid spamming, so I'll post my reply here, okay?
If they are all "oh, I'm a Pogeyman Master! Ask me anyfink and I have teh answer!", then they are obviously NOT a guru. Someone who doesn't 'sell themself out', and I say this because it's the best way I can describe it, and will answer questions without being asked directly and/or bragging about it can be considered gurus. Short story: If you say you're a guru, you're not. If other people say you're a guru, you most likely are. Or they're sucking up.
Regigigas is based off of golems of the Hebrew legend is not necessarily made of anything.
~SL~