Thanks Tim, I'd be surprised if even 10% of users actually set their posts' minimum above 25, as we're mostly vexed by a lack of attention, not an excess.
If we think in terms of effort, and pencil in a month of creative writing to get up to 50, then nobody is being excluded from even those 10% of posts except those who've been here less than a month, and those who've abused the privilege.