What does this blue post mean please read

[iadygaga]

Raid Lock Wipe
Originally Posted by Bashiok (Source)
In preparation for the new flex lock system we’ll be wiping the following raid locks at the time of the next patch release.

* Onyxia's Lair
* Naxxramas
* Ulduar
* Obsidian Sanctum
* Eye of Eternity
* Vault of Archavon
* Trial of the Crusader

[Deleted]

These were on the old "group lockout" system, so my guess is its being switched to the flex lock system like icc already is.

[Deleted]

People are able to "extend" the old locks they still have so they're wiping the slate clean and thus making it impossible to extend the old ones.

[iadygaga]

o alright, i got it thanks!