The only thing I would like to see the WMF "pursue vigorously" is the agreed mission and values. http://wikimediafoundation.org/wiki/Values http://wikimediafoundation.org/wiki/Mission_statement
The image filter "issue" can only be considered tangential to the mission. In comparison, "in perpetuity" is an explicit part of the mission and has no real meaning apart from vague hand waiving about how important it is, I strongly believe there out to be a long term trust fund with a 100 year view to ensure this is delivered.
It would be delightful to see Sue and the WMF Board spend as much time blogging and talking about issues fundamental to the mission rather than forcing the community to argue about something that can be achieved by organizations and tools away from the Foundation and without using our donated charitable monies in a way that is not clearly accountable against the declared charitable purpose.
Cheers, Fae