Brett_Tabke - 4:49 am on Jun 25, 2002 (gmt 0)

Because many stats trackers don't properly count Opera. Opera can id itself as Mozilla and Internet Explorer. That emulation is 100% in JavaScript. Those counters that use JS to track, will always count opera as something else. If they use a image counter, then they have to specifically look for the string "opera" in the agent name (it looks just like a IE branding name like for Tucows or something)