The site has been under attack for the past few days and when the servers get slow, they act goofy. You might make a post, it may look like it didnt go through, so you click post again and again - later it turns out there were multiple posts.

Similarly you might make a comment, it might look like it went through, and later it turns out it didnt.

Any attack is always a good sign, so this sustained attack is an extremly good sign!