We have two crossposters available. Twitter has a hard limit of 300 posts within a 3hr period per Developer Acccount . Each crossposter requires a Developer Account for access to the Twitter API. We began hitting our posting limit at around 150 users on Crossposter1, so we spun up Crossposter2.
If the user count (available on the status page of the crossposter) is over 150 check the other crossposter so we can distibute the posting load.
If you move from one instance of the crossposter to another, PLEASE disconnect your account from the first instance.
Currently has the fewest users - Crossposter2
Currently has a lot of users - Crossposter1
We will keep an eye on the numbers and the upcoming API changes at Twitter and update accordingly.