I just logged back on to get ready for season of mastery and logged onto my tbc era toon and there was nobody on. I’m now on and its saturday and there are 3 people on as alliance. This is a community based game and there is no community. I think its unfair that I should have pay to transfer my character to a server with players in it. I contacted Customer Service and they said to reach out to devs on the forums.
They announced free transfers on the general discussion: Free Character Transfers Coming to Burning Crusade Classic
Details still pending, so in the mean time you can just farm the empty server for herbs/ore/primals/dailies or anything else that will be more contested on a large server.