Maria Korolov over on Hypergrid Business is doing an excellent job of tracking events related to the changes in the Linden Dollar exchanges due to the Linden change in ToS. If you need the latest information, I suggest you follow her blog.
The point has come up that the Linden ToS provides for a 30 day window from the time of a change until the day it is enforced. The Lab is telling third party exchanges they must be shut down by Monday morning (5/13). If they enforce the Monday Morning shut down, that would seem to leave the Lab liable to lawsuits for damages. So, this Monday morning’s shut downs may be a costly mistake.
However, the Lindens do have the capability to shut down non-compliant exchanges. On the Linden side it is just a matter of deciding to and doing it, some clicks on the Linden computer screens.
