It is something of a mark of style - which, since you kindly ask - I inherited from my father, and I use as a sort of homage.-
PS. It has also, countless times, saved me when I "retroactively" needed to claim authorship of something I had writen, by pointing it out. Most people either don't notice or do and don't say ...
I think it is. Also, as best I can, with my life - as do we all, don't we? Trying to be worthy of having been put here by those that came before us ...
Thanks for your attention to detail and the opportunity to converse.-
I nonetheless appreciate your curiosity).-