Not sure who started it. People at other forums have no proper answer as to why or who made PRSi the accepted (and very WRONG) plural of PRSs.
Some suggested it's because words that end in us (stylus, fungus etc) get an I at the end for the plural form. Well..PRS does NOT end in US so it is NOT that.
Others thought it stands for PRSINSTRUMENTS!! I for Instruments. Well no...PRSi means Paul Reed Smith instrument. Not instrumentS. The plural of PRSinstrument (PRSi) would be PRSinstrumentS (PRSIs)...you know...with an S on the end.
So does everyone think we can stop saying PRSi? It isn't cute. It isn't correct. It's STUPID! ;-)
YMMV and all but it's getting embarrassing everytime someone asks me wtf PRSi stands for.
"Well...for whatever reason, people THINK that the PLURAL od PRS is PRSi."
Yeah...they all usually think it's ridiculous and pretentious. Some say..."I thought lawyers and doctors own PRSs. They shouldn't be illiterate like that...are they??". No, they clearly are NOT educated professionals. That is just a stereotype...obviously. Probably mostly just Dr. and Lawyer posers?
Maybe I'm wrong. If so please explain how PRSi makes ANY sense.