TIL that adding an RSS source to Micro.blog does require separate settings for replication, and therefore does allow distinct replication options. Micro.blog does not assume you want each source handled identically, even if that is your own intent.
Also?
Micro.blog does not know that a service you wish to replicate to will require an application specific password. Micro.blog does not know you my need an “@” symbol in front of your username.
You have to know.
And you may have forgotten you knew.