mountainvalley.naba
The handle carries an affiliation in it -- mountainvalley.naba -- which is a small, sensible piece of signalling: it tells a player that this is a National Adult Baseball Association league before he clicks anything.
He cannot click it. Facebook answers non-browser requests with a bad request error, so the page is unreadable from outside and unindexable in the ordinary way.
An affiliation is one of the most useful facts a league can publish, because it implies rules, tournament access and a standard of play. Encoding it in a social handle means it reaches exactly the people who already found the page.
A High Cheese league page states the affiliation on a page that renders, alongside the schedule, the standings and every roster, at an address the league owns -- so the thing worth signalling is actually visible to the people it was meant to signal.
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