Agreed that mindlessly changing hyphens to check-hyphens is one way some P3 automatons introduce more damage than they're worth. There is a general problem in DP that proofers introduce a check-hyphen when they mean "I really don't like the fact that the original book had a hyphen there." Well, too bad. If the original book had a hyphen there then the two options are: 1) Join with hyphen, or 2) Join without hyphen "Throw the hyphen away because I do not like it" is not an option. Typical example is something like: ..school- teacher. Where the two plausible answers could be: .school-teacher. or .schoolteacher. and of course the proofer automaton changes this to .school-*teacher. meaning "gee I wish the author had written this as:" .school teacher. which of course is not an option.