I think it's completely up to the manager and I'm sure they have a good reason for choosing to put you on trial. When I was Rare Values Manager a few years ago - note, back when the department had a lot more interest - I put a policy in place which meant that if you resigned, you'd have to come back on trial no matter what your role was (management may have been an exception) and the main reason was that very often we'd have a number of people leaving only to want to return a short while later. I won't name them but there used to be a person who'd return every time a senior position became available and then leave when it was filled by someone else, @
-Danube-; will know :P.. if he ever comes online :(.
As for a Habbox wide policy, I don't think there should be one tbh. With a department like Rare Values which is struggling for staff I think they should be allowed to return in full staff positions, but
not if big changes have been made to the department since they were last there. For example someone who was around when RV was reporting in threads wanting to return now. Also the length of time can make a difference. But then with departments with loads of interest for staff, any regular staff should definitely be put back in as trialists imo but possibly with exceptions for senior staff or management depending on the opinion of the manager hiring them.