After hearing several Wordpress users say they had problems commenting here, the problem may lie with WordPress itself, and there are solutions - hopefully.
The problem apparently lies with how WordPress authenticates users. (Update: To clarify - HotWhopper is on Google's Blogger. The ID of people who leave comments can be authenticated by different platforms such as WordPress, TypePad, Google etc. if you comment using those IDs. Or people's ID won't authenticated if comments are posted as "Anonymous" or if you comment using "Name/URL".)
From an article from November last year, it's likely that "WordPress, which in general is using SSL security, has an OpenID server that has not been upgraded" - which causes the problems when commenting as WordPress.
Read on for two possible solutions.
1. Comment as: using OpenID instead of selecting WordPress.
As described here:
Until WordPress upgrades their OpenID server, people who want to use a WordPress OpenID account, to comment on our blogs, will have to select "OpenID", instead of "WordPress" - then enter the WordPress OpenID URL, as:
http://whatever.wordpress.com (replacing "whatever" with your WordPress id)
And wait for WordPress to upgrade their server.
This should allow you to be authenticated as a WordPress user.
2. Comment as: using Name/URL instead of selecting WordPress.
Instead of selecting WordPress to comment as, choose Name/URL.
The Name/URL has no authentication. So if that's important to you, use option 1 above.
Let me know if you continue to have problems with the above solutions.