Text liberation is the free circulation of fiction subject only to one's own self-chosen repute and trust constraints. It cannot ever be reconciled with sysop vandalism or some priestly hierarchy that uses its control of technology and domain names to also control information. AlterNIC and Wikipedia Red Faction are or were two attempts to achieve text liberation, of TLD and GFDL corpus respectively. It continues via various GFDL corpus access providers that defy Wikimedia corruption and refuse to submit to demands for link-backs that are unwarranted under the actual license of contributions.
See troll-sysop struggle for the usual rhetoric of this liberation stuff.
Troll text is text that has been specifically useful in troll-sysop struggle to justify continued resistance to sysop power structure. In other words, anyone who actually repeats or restores any of it automatically will be regarded "as a troll" with whatever stigma or honour that implies. This text is heavily scrutinized and tends to be very well vetted - because so many people who spend all their time editing tend to focus on it and try to find fault with it. It is thus usually the most reliable text in any large public wiki and has gone through more evolution under more pressure.