Sirona and all the others are right: the WTS does lurk on these sites and this site in particular. Can't name my source, but trust me, the source is reliable.
They are particularly interested in:
1) High profile apostates. They want to see what they are up to, what old dirt they have dug up on the society and what others are saying who comment on their posts and articles.
2) Posters who claim to be active Elders and COs. They are most interested in outing them and getting them out of the organization. I personally know of a handful of instances where the society instructed people to find out who certain people posting were and when they did, to get rid of them.
At the local level, there have been several instances where elders paid a "shepherding call" to a suspect and without permission marched right over to the computer and opened up the browser's history list. Even though the elders were told they had no right to do so, they elders kept on snooping.
The old saying "know thy enemy" is true, and since EVERYONE is the enemy of the WTS, it is only logical they would monitor sites like this.
Farkel