So the conclusion to the customer numbers not renumbering in CLOSED Sales Orders in Sales Order History file (which was supposed to be fixed on the infamous Product Update 2 for 2014...) NOW the powers that be have decided that this WORKS AS DESIGNED. So the thinking is that if you have a customer who is bought out or changes their name, or whatever, you would want to know how much they ordered as the old customer and the new, separately. Now if you carried that thought along to a logical conclusion, you would also not renumber the invoices in invoice history, right? And besides that - if the only reason you are renumbering is because they changed their name, who the *expletive deleted* cares how much the ordered before they changed their name. Or say you decide to have a whole renumber party of your customers!
Whatever. That is a totally bullshit WAD. Way to raise my blood pressure twice in one day, Sage.