Wow, over a decade! I'm sure you have much feedback to offer. You've convinced me to change the way search works with fanned isotopes. Currently, searching for "infinity" under half-life will show stable elements or ">0" under abundance will show non-zero values by dimming those isotopes. Instead, I'll have it filter them out entirely rather than adjusting opacity.
But anyways, thanks for all the work you've done! I've been using it daily for the past 10-11 years, it is a great resource :D