Currently, the Protected message text reads:
Given that we now strive to become more welcoming to new users, shouldn't we change the phrasing to something that doesn't seem as hostile as the existing text?
I'd suggest something that doesn't conflate thanks, me too and spam with the new users. E.g.
This question is protected to prevent "thanks!", "me too!", or spam answers. To answer it, you must have earned at least 10 reputation on this site (the association bonus does not count).