Is there anywhere or anyone to complain to about the behaviour of moderators? I've been "spoken" to offensively by a moderator, and I'm unhappy about it.
Yes, there is. It's right here. You already found it!
Alternatively, if it's a sensitive issue that you'd prefer not be discussed out in the open, you can email
[email protected] about it, citing all relevant details, and someone will contact you in private. The advantage of that versus raising another moderator flag is that it's guaranteed to be handled by one of the Stack Overflow employees, rather than a community-elected moderator.
But please remember: moderators are people, too. They sometimes make mistakes and/or have temporary lapses in judgement. Just because they were harsh with you once or made a decision that you disagree with doesn't mean that they're bad moderators, that they'll hold a grudge against you, or even that they'll make the same decision a second time.
Right here! If it's something you prefer not to be made public, you can always email [email protected].