A question has rise in my mind of whether "if comment should be anonymous?". Why do I ask such question? Well if you look in some sites in the web the only way to comment in by login in or being a member of the website which seem understandable but why not anonymous for most website why bother it's only gonna make the user leave the website.
Bryan:
My opinion which actually is a fact is to keep spammers away but that not always the case. Some spammers make an account and just spam but then we have the report bottom and the admin takes care of it. They either get ban or can't comment anymore, as a result it help the community but as the community grows seem to become a bigger issue. So if comment were allow to be anonymous, their would be more spammers and because of this most website used this system in which you must be a member or have a login, this is just to prevent spammer. But it only minimizes the amount of spammer doesn't actually stop them. I usually don't use sources but in a source I found out that spammer are growing a lot more recently and it's only growing bigger. Spammers also can be dangerous to much of us! In the article or blog Kerry Gorgone saids"Some spam commenters are fishing (or “phishing”) for people’s personal information, so that they can steal their identity or sell their personal data." Which in that case if you see a spammer just spamming link of websites don't click on it they might just steal your identity.
Thank for reading
Source:http://www.businessesgrow.com/2014/06/04/comment-spam/