Well…I always do. So, at least one! Seriously, you don’t have to expect people to read it…it’s only there in case some bonehead decides to get all up in arms because their opinion about hybrid dwarf aliens taking over the government has been stepped on by a mod and they are howling about having their freedom of speech infringed on.
In practice, I would think any use they’d get out of it would be more along the lines of an alternative to polling for gauging approval of administration policy and responding to it than actually seeking new policies from Internet posters. Something along the lines of how his FISA decision was rankling the online communities and so he issued a statement explaining his judgment. It might affect his decisions on certain policy issues, but I doubt it’ll affect the options he considers.
Assuming Obama’s team only uses it for the traditional purposes, the denial of robots to access /includes/ doesn’t bother me any.