I think I switched to opera somewhere around the end of Opera3, before the advertising window, then 5.12 being a version number that I seem to remember vividly.

I think I switched to opera somewhere around the end of Opera3, before the advertising window, then 5.12 being a version number that I seem to remember vividly. Even bought a few Opera7/FreeBSD keys back then for all my boxes (even the headless ones) to show support. The initial Chrome-based Opera was a culture shock after the 12.x series. But, the more recent releases are actually quite usable I found and Opera is once again my main choice on Windows. I would be honestly sad to see it go.