Here comes the use of third party commenting systems like Disqus, IntenseDebate, etc.. I personally like Disqus and have integrated it to my blog instead of the old default commenting system.
1001-Tricks. You can comment with the following accounts and services.
- Disqus Account. (Don't Have? Get One!).
- Twitter Account.
- Facebook Account
- Yahoo! Account
- Open ID
- Or As A Guest With You Email ID And Name.