SoEasilySwayed on "Hiding Stock Comments, Adding Facebook Comments (in Categories)"

Ive been looking for a solution for this but I have not been able to figure it out. Not sure if its a dead simple fix or what? My braiiiinnn!!

I have a CSS snippet in my theme that completely removes the comments from blog POSTS. (Comments, Author,and Tags.) which I dont want (The stock WP comments)...

Now, I want to keep the WP Stock comments hidden, and add facebook comments. I have the plugin and all. but since I CSS'ed out the comments section, the facebook comments does show up in blog posts. If I remove the code snippet, and refresh, it shows the stock comments, author, and tags, and below that, the facebook comments...

Another twist! I want to have the facebook comments ONLY when its the "Blog" category.

I just want facebook comments in "Category:Blog" posts since I post other categories on the site. but in the same time, hide the stock comments, author, and tags.

This is the code snippet im using...:

.single #comments, .single .date, single hr.remove-top {
    display: none !important;
}

.single .nocomments, .single .date, single hr.remove-top {
display: none !important;
}

Any solution would be awesome! HELLLLLP!

:(