Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
I don't see how the bashwelcometweak would affect the network (ssh) connection - it's a simple bash function that is executed after an interactive login (i.e. it doesn't affect sftp).
How are you applying the script ?