Yes she mentioned that her website was getting DDOSed and that she was going to put it behind Cloudflare. I'm not sure its a DDOS though, it could just be the amount of traffic she's getting from HN/Reddit/Twitter/etc.

https://news.ycombinator.com/item?id=5400134

EDIT: It seems that her personal website (adriarichards.com) is down too.

How is putting it behind Cloudflare going to help now that the (alleged) DDoSers have the IP address of the actual server?

mirror the content to a different host. point cloudflare at it. something like that i guess. could be a pain in the ass if you can't get to the original server and you have no other copies of the content, though.