Sorry I had to chime in here with probably an unpopular opinion: and this is not directed to any one person. I honestly don't see anything wrong with someone asking for an SA contact. We can only assume someone wants to 'leapfrog' or get an advantage or ingratiate themselves...but it's just that: an ASSUMPTION. Lets face it, don't we all do a bit of that in our personal and professional lives anyway? Don't we try to make a good first impression to get offered 'something' in return, whether tangible or intangible? In a job interview, you are on your best behavior and dress appropriately in hopes of a job offer; on a first date you wear makeup and a nice outfit in hopes the person will like you; I've read some ladies go into H dressed in Hermès from head to toe...in hopes of impresseing the SA enough to score a bag offer. The list goes on and on. Those who say they don't do, or haven't at some point done, ANY of the above would be lying.
Maybe they genuinely want to know who we feel are nice amd helpful (since we all know there can be some trifling and rude and stuck up luxury SAs [there's entire threads dedicated to bad shopping experiences]). I'd take it as a compliment if a stranger trusts my judgment enough to recommend an SA to them.
To your point, if I am unfamiliar with a new city or the people or the "behaviors" there...then why not ask some kind folks here for help. I liken it to asking people's suggestions on a nice restaurant or hotel or museum or things to do in the city. As long as the SA is fine with it, and you feel comfortable sharing. No harm done. I don't understand all the complaining here or why people are making a big deal out of nothing.

If you don't like the question(s)...don't answer it, move on. Always assume positive intent; and don't berate or condescend to someone for asking a question in a forum, FCS.