I agree. Or at least it could have been worded better. "behavior over the years" sounds like scolding a child. Either way, I think a lot of it is social postur

I agree. Or at least it could have been worded better. "behavior over the years" sounds like scolding a child. Either way, I think a lot of it is social posturing, as part of individual distancing from the transpired scandal. E.g. some of the friends/relatives of the signatories now view RMS strictly negatively, so they try their best to distance themselves (or, interpreting charitably, the corresponding GNU subprojects) to try to salvage some reputation.