Users able to delete own posts ??

hello everyone ...
Users can now delete their own posts...
is this a new "feature" ? how can I disable it ?

so why don't I see an option to delete my post here ?
(actually i'm writing this to check ..it might not let me delete the thread-starter ..but i wanna check if it lets me delete the 2nd-3rd post).

edit:
ok it lets me delete it .. but i don't remember this feature being there ..sorry I've been away from the game about a year ...
Is there a way to disable it ?

GENERAL>Categories and forums>Permissions>Delete its own messages and attachments

thank you!