Ah, I suppose getting several guild members all "buying" guild renoun through Sands turn-ins could be considered exploiting.
I was also wondering about this post when I saw it on the offical forum. Be interesting to see if they do anything about the guilds who are excessively farming renown this way.
Seems to me back when there was another renoun exploit discovered right after the system first came out, a few guilds got their hands slapped by Turbine for exploiting the renown system in a way it was not intended.
Of course, it is also in a large part Turbines fault for both the crappy coding regarding renown tokens, and then also not bothering to fix it. I have known forever that you can get renown tokens when turning in runes for DT, and for the Agents of Argonnessen favor reward. Both obviously not intended to be there.
I am quite sure there are a lot of other instances as well were renown tokens show up where they are not supposed to be.
Will be interesting to see what becomes of this. My money would be on that they will just quietly fix it, and say nothing about it at all.
On the plus side, now may be a very good time to sell all those tokens I have been hoarding