Removing Feature post Thread

I have three feature posts about the lore of my game (Story of Alexia) but they contain not only stuff that's copyrighted by a team member who left shortly after I made the posts and might try to get back at me / sue me or whatnot for having her stuff in the posts, and also lore that's completely outdated as I overhauled the lore and the premise not long ago. So in fact, the whole 3 posts are kind of an old shame I'd rather get rid of. How do I remove news/feature posts? And if I can't, could the moderators/staff do it? The posts are about the 3 races in the game; humans, Youkai and Spirits. They're features, not news, so I wonder, does it work differently or anything like that?

Or can I just blank out the posts completely and add a capital text ''THIS IS OLD'' or whatever?

Thanks in advance.

Edited by: SpaghettiBasDev