I can understand why a site may be upset with the mention of another site, human nature. It would be similar to directing someone to another forum here. Iffy etiquette.
15 or so years ago I was walking from the sales counter back to my office, passing the coffee lounge area I had in the shop. I overheard a "loyal" customer (regular free coffee drinker) telling another customer to check out a competitors stock on a $700 plus fly rod that he was thinking of purchasing that day.... I had spent at least a 1/2 an hour with him on the rod details and possible reel and line set-ups for him, giving him a "combo" price. The customer later left saying thanks, he wanted to think it over.
That evening, after the store closed, I paid 2 employees overtime to help me remove the lounge, 2 couches, coffee table, dvd tv, and the coffee stand out of the store.
The following morning the face on the "loyal" customers face was priceless. He asked where the coffee was.... I told him I couldn't afford to give out free coffee *AND* lose sales.... go try xzyp store, maybe they have coffee for you.
I took a little heat for that decision but after hearing of similar events from other dealers around the country, I believe it was the right decision.
The "moral" is.... it just isn't cool to be "in a place of business" and sending that proprietors customers elsewhere, out on the street fine.
All that said, weird slap on the wrist as I'm sure we have all mentioned another game to a friend on a different site.