Hi @need_not,

How do I make it so the max avatar size it more then 8 kb

We'll add a new filter wpforo_avatar_upload_max_filesize in next version release. You'll be able to change the avatar upload size.

How do I hide the use word press and url avatars 

You should add the following CSS code in "Custom CSS code" textarea, it is located in Dashboard > Forums > Settings > Styles admin page.

#wpforo #wpforo-wrap .wpf-field-type-avatar .wpf-field-wrap > ul > li:first-child, #wpforo #wpforo-wrap .wpf-field-type-avatar .wpf-field-wrap > ul > li:nth-child(2) {
   display: none !important;
}

Please don't forget to delete all caches before checking. 

Hi @need_not,

yes, you just need to add the CSS code I've provided in the previous post, delete all caches and do CTRL+F5 on the forum frontend.