Comment by buster

Never understood the need for disqus, it is always blocked like every other 3rdparty service but when i see it blocked i never understood why someone uses an external service for a simle discussion in a CMS. How is it that this part is outsourced frequently on blogs, news posts, etc. where traditionally the CMS itself just showed the comments section? Why? I just never enable disqus because it kind of feels stupid to me.