We develop the site to be compatible with as many browsers as possible.
However, we have tested and been able to recreate certain bugs on Internet Explorer 8. When we tried all versions of IE 9 and onwards, the bugs disappeared.
Since IE8 is 5 years old and even Google stopped supporting it in Nov 2012, it is very difficult for new websites to make all improvements fully backwards-compatible.
If you are running Windows 7, you could update for free to IE11 which should improve your general browsing experience (and security) considerably, ensuring all sites appear as they should.
You don't have to update to 11 if you don't want to, IE9 should work just as well. However, the newer you can keep your browser the better everything works (in theory).
Because Google Chrome and Safari automatically update themselves (in most cases), we highly recommend using these browsers for all your internet needs.
We hope this answers your question.