oh wait... I'M the webmaster... SH1T!!1...
Actually i was going to remove all the CSS from the site if you were using IE6/7 and put this image instead on the header

Well i have lowered the warning for all those using IE6/7 only, even IE8 still sucks.
Why i have done this? because im developing the new L2j forum/website theme and since it has quite some features in jQuery and other CSS stuff it sucks on IE6/7/8, so im not going to lose time doing a separate CSS for IE only or messing my code with CSShacks, i like that my work its XHTML/CSS Valid, and now that Chrome, Safari, Opera and Firefox support some CSS3 and HTML5 im really oriented to work on "real" web browsers.
As janii said, im not forcing you to change your browser, im just making a recomendation to change into a "GOOD browser" since i will not fix useless bugs of IE that just take a lot of time, wasted time, if you think that Internet Explorer 8 its fast, you should use Opera or Chrome instead, thats its BLAZING MOTHAFUKING FAST!!!