A lot of users find the 'reputation required' message on protected questions hard to understand, specifically when they've gained the network association bonus and they think they have earned enough reputation.
The dialog states (emphasis mine):
Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site.
That isn't entirely true. This 10 reputation was gained on that site, but through the association bonus. Users simply don't get the association bonus doesn't count.
Can we change the wording? Maybe to something like this:
Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (excluding the network association bonus).
Or:
Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation gained through upvotes on this site.