They can't enforce it, but they can set the tone for what they're looking for in volunteers. They explicitly don't want gossipers, or people who post unflattering speculation about loved ones in open cases where there is no evidence.
Right, but how many people will realistically decide, "Gosh, I
want to search... but I guess I better not, because I'm a vile gossip who has been spouting unflattering speculations and I know TES doesn't want my kind around. So I'll stay home." Most people discussing the case probably don't regard themselves in quite that light. lol
Several people closely associated with Katelyn's fiance have said the Considering Everything group contributes nothing to the case but gossip, rumor-mongering, bashing, and even libel. But the truth is, some very thoughtful and intelligent people there are doing smart things, like closely examining the timeline and drawing logical inferences from it. They also ask clarifying questions of friends and family who (voluntarily) appear in the group and announce they have nothing to hide so ask them anything, etc.
If someone sees a glaring inconsistency and brings it to the table for discussion, and the inconsistency casts an "unflattering" light on the loved one in question, how is that the fault of the person who merely noticed it? That
loved one is the author of that inconsistency and thus of any "unflattering" perceptions that develop. That loved one must reasonably expect to generate public reaction when he chooses to express himself in the public eye.
BTW, the TES spokesperson who answered the inquiry to clarify TM's statement apparently regards ANY discussion as a problem. She did not limit the stricture to those making "unflattering" speculations about "loved ones" but to
anyone discussing the case in blogs and social media. (I'm sure people discuss it in the real world too; but they are not mentioned.)
To sum up:
-I understand having a problem with obnoxious people who won't shut up on the searches. (Send them home and ask them not to return.)
-I understand if TES wants to distance itself from any appearance of partaking in or supporting any particular kind of public speculation.
-I do not understand why they're speaking for local law enforcement, who have said not one word to the Considering Everything administrator.
-I do not understand why they'd want to alienate interested, motived, caring people, reduce the number of volunteers (when the refrain has been that they don't have enough), and reduce donations.