Questione giuridica chiave
Whether the cantonal court could refuse to enter into the appeal because the filing lacked a proper signature.
Decisione estratta
The non-entry decision violated federal law because the court should have allowed a short cure period in light of its established prior practice accepting such filings.
Motivazione estratta
The court had created a reliance basis by consistently accepting similarly signed appeals for years. A sudden, unannounced change in formal practice could not be applied to the appellant so as to forfeit the appeal right without granting a cure period.