[lisper]

> Or it's a debit on the company's account.

That's exactly right. They owe you money, so it is (or at least it should be) a credit on your account, and a debit on theirs. But that is not what the definition given in the article says. TFA's definition of "credit" was "An entry that represents money leaving an account" and likewise a debit is "An entry that represents money entering an account." So when you paid your bill, that was (by the articles definition) a credit to your checking account and a debit to your account with company whose bill you were paying, which is exactly backwards. According to the standard English definitions, a credit is something that makes your net worth go up, and a debit is something that makes your net worth go down. So when you pay your bill, that should be a debit to you (cash going out decreases your net worth) and a credit to the counterparty (cash coming in increases their net worth).

> Same nature as discussions about clients/servers.

How so? It seems to me that distinction is clear: the client is the machine that initiated the connection, the one that did the DNS lookup.