You sure know your pens @freemo. I have to ask: how much writing work do you have to do these days - outside the hobby part?
My favourite nib from this incredibly fine selection, if I have choose only one, is the 1899 Waterman. With the right ink, and the right paper, I am certain, what it writes may well last for centuries - well beyond anything digital, or anything we have on social media.
@madhur I am not a scribe for hire, nor are my skills sufficient to be one if I wanted to be. I just like fountain pens and have been trying for 2 years to improve my handwriting and try to study historic scripts to replicate them in my writing.
Outside of playing I use my writing for really only two practical purposes 1) To keep a journal, which helps me in self growth and accountability 2) to write people letters as a way to add an extra personal touch so that people feel more appreciated.
With that said I do have some friends who are professional scribes. They make an entire living off of their calligraphy. They make money by teaching classes in hand writing and by taking work which often entails things like writing lettering for store fronts, for example.