I'm a scribe who makes most of his gold from selling Darkmoon Trinkets. Last night I noticed a guildy spamming trade trying to sell his Relic of Yu'Long. After about 2 hours of advertising Trade Chat, he apparently gives up and asks if anybody wants to buy it for 6k (in guild chat) I immediately take advantage of this and buy it from the guy, then turn around and sell it for over double what I paid him.
However now I'm feeling a little guilty because I feel like I took advantage of a guildy... The guild isn't very tight knit because there's over 60 people on at all times (even in the AM), but I still feel bad. Was I wrong to take advantage of a guildy, or is it fine because he got what he asked for anyways; business is business?