it takes people for the servers to recover if it is not difficult for someone to come to the servers and there are no players waiting for it 10min
The reason behind that may be that not many people play 1.2.3 anymore there is people still playing tho you could join the discord and see if anyone wants to play! 
There is a Steam group chat going with the currently active people, which also contains a bunch of inactive people but they do play here and there on European servers. Haven’t seen any active Americans for years tho (except Werty?), that might be a timezone issue and me not checking a lot tho.
I am still hosting an American server, just in case.