[gottabekd]

You can use something like https://disqus.com/

A random example site (comments at the bottom): https://9to5google.com/2016/11/15/oneplus-3t-specs/

Some benefits:

• About the easiest way to set up comments. Just need to be able to drop some JavaScript on the page. No back end coding required.
• Has spam protection built-in.
• Some users will already have accounts.
• Might be useful to drive more traffic to your site, since users might come across the Disqus discussion on the main site.

Some drawbacks:

• It is a fair amount of JavaScript to load onto the page. I mean, still lighter weight than Flash ads and the like, but still ads some heft to the page.
• Probably there is a bunch of nasty user tracking built-in to the widget, if you care about that stuff. I mean, all sites do it anyways, just an FYI.
• Users will need to sign up, which greatly reduces the likelihood of commenting (but also reduces like 99% of spam). EDIT: Just checked, you can enable Guest commenting, which is nice.
• This is strictly a drop-in commenting system. Depending on what you are after, this will obviously be a 3rd party integration, and while it appears on your site, it will be obvious to visitors that it isn't integrated with your site. Depends on the professionalism you are looking to portray.