One thing about /barter....
Check the vendor selling price of the TS items you're farming. If the douchebags in /barter are buying the items BELOW vendor price, then fuck'm. Vendor that shit all day long. And if it were me, I'd vendor it in really random, out of the way places where it's likely to poof the next time the zone reloads because fuck'm for trying to take advantage of you. For example, there's a guy on my server at the moment buying (or trying to buy, assuming people aren't dumb) imbued gems and other things that vendor for 300-400 plat for 45 plat.
If you setup a /barter, and actually intend on making plat that way, you have to make the choice between hoping people are stupid to raise your profit margin, or being a good neighbor and paying a fair price for the items. If you can't turn a profit by paying at or above the vendor price, then maybe you need to find a different TS item to churn.