Holding that "[i]n the absence of a clear statement of legislative intent to make filing deadline jurisdictional ... th[e] deadline [imposed by D.C. App. R. 15(a) ] is not a jurisdictional rule ... and ... as a claim-processing rule, filing deadline is subject to equitable tolling" and explaining that "the modern bright[-]line default [rule] ... is that procedural rules, even those codified in statutes, are nonjurisdictional in character"
Finding that venue did not lie "where the only connection to the claims are that, arguably, two people, one of whom was a member of the plaintiff [organization], placed orders through a generally accessible website for shipment of a small amount of allegedly infringing merchandise"
Concluding it would be an abuse of the judicial system if parties were allowed to purposefully file in the wrong court in order to hold open the statute of limitations indefinitely