I'm pretty sure that LSC is just a typo for LCS = Local Coin Shop. The only PMs I know are Prime Minister, Post Meridian, and Private Message.
I'm confused as well, I thought we were just having a nice conversation about coins. Not sure I care who the OP is, I enjoy the discussion!
Exactly! It doesn't matter, and none of us knows her personally, so it's not worth speculating about in my opinion.
In CT, pm is precious metals. We use the terminology constantly in that regard. Concerning speculating, I am with you. I could care less which pronoun a person wishes to be addressed as. Heck, I posted here I just got my doctorate. I do not expect anyone to call me doc, one because I find it ostentatious, and two, its the internet. People lie about stupider stuff on the internet. Let me know if you prefer sir, ma'am, ( for I was raised to be polite), and that is all I need/want/desire on an internet board. We are here to discuss coins not contemporary gender assignments.
LCS = local coin shop aka the shops you see if you Google coin shops in your city. PM = Precious Metals: Gold, Silver, Platinum and Palladium. Some include Rhodium too as the most expensive of all of them.