I respectfully disagree. This is exactly how you generate tons of gold out of thin air. The moment you allow subscription tokens to be traded for gold, it would create huge incentive for people to farm gold. If before , all of the scripters could sell say 10 plat a week total (making up numbers as I go), because that's what the lazy were willing to buy, now you have all this additional demand from the players who don't want to spend real money on subs. Price of gold goes up - scripters go into overdrive. All of a sudden you have 100 plat generated and sold a week.I think only remotely feasible way for Broadsword to "sell gold" would be via subscription tokens. One would buy a 30 days sub token from Broadsword for 20 bux, then sell it for a veteran for 500 mils or whatnot. This way Broadsword would not generate hundreds of millions of gold out of thin air(would be a real bad idea) but instead, distribute what already is there more evenly among players. I'm not sure if UO can or should do it.(Some dupers sitting on trillions of gold, buying all the tokens and efficiently turn UO free for them on top of it all)
WoW has it up and running quite nicely -there, devs keep an eye on the sub token market. They don't fully control the price but ensure it never skyrockets or falls in some pernament, unpredictable way. Players can only sell/buy for a specific price in a specific place. Lessens the amount of exploiting, scams etc.
In a way, this is something that has been in the game for years though. Plenty of desirable tokens in item shop. Ones you can turn into gold with ease, if you feel you can spend the Euros.
In the end, the inflation will most likely go down, because this is an effective gold sink. However, the price for that will be sharp decline in revenue for BS/EA. And I don't think this is a good trade.