I guess I understand why sellers may want it for ease of bookkeeping, but I will have nothing to do with it after the mess of back and forth with them and being double-charged, etc. Sounds like "I'm never shopping there again", doesn't it.
Ease of bookkeeping has nothing to do with, in my case. It is one of the few ways I have to accept credit cards, as getting a merchant account is nearly impossible for a small business and a lot more expensive.
Back on topic!
A business's information (owner, business address, etc) is published when the business is registered. Immediately after I registered mine, I got about a dozen invoices from "Business Bureau", "Business Association", "Retailer's Association", etc. All of them with a very short deadline, stating that I had to pay my annual fee and quoting a federal law number to be compliant. Very official looking.
Except that they are all crooks. I am not legally obliged to be part of any such association. The law they are quoting merely states how such associations should be run. However, if I did pay the invoice, I would be legally enrolled in the association and obliged to pay the annual fees. It is even more convincing when you consider the bureaucratic mess this country is and all the paperwork, fees and stuff involved in opening a small business.
This also happens if you register or update your contact information for a domain name. When I first registered my own domain name for my website, I got a number of letters on the first year anniversary of the registration from different companies. "Your domain name is about to expire! Send us $$ to renew or you could lose your domain name FOREVER."
What happens is that if you do send them money, is that they take over the registration from the company you first registered with and then charge you $$$$ every year to keep it or they turn it into some porn/link spam site. Very underhanded.
The worse explosion of unsolicited mail I ever got though was when I was a passenger in a car involved in a fender bender. Guy behind us hit the car. My name and address were taken by the police because I was a witness. The guy who hit us was clearly at fault, but there was some dispute about whether the car I was in had a red light (we did) and should have stopped (we should have). Because my information was on the police report, it was became public record.
Within days I got DOZENS of letters from various law offices wanting to represent me in court for my injuries. Never mind that I was not injured now, didn't I know that injuries could appear weeks, months, and even years later? I should file immediately to get all the monetary damages I deserved for my non-existent pain and suffering. Several of the letters even stated that they had doctor's offices they recommended for diagnosis (and I'm sure these "doctors" always found something wrong with a little help from a kickback from the law offices). The letters continued for at least 3 months. By the end I must have gotten well over 100 different letters, sometimes multiple ones from the same office.
I have never been so disgusted in my life. These lawyers were the reason the term "ambulance chaser" was invented.