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[wowmad]

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[EinBaum]

They post all announcements in these forums and have colored names.
Everything else is BS.

[kovenant]

there actually are and were a lot of Nostalrius scammers (like Nostallrius)
back when I was operating under name Krusher I was investigating a lot of time in gold sellers, websites and scammers.

for Nostalrius, there are also several ways to spread their message and normally people know where to find these.
there are always people that will fall for tricksters there is no preventing that.
at this moment Facebook / youtube / Forums / main page are most used