If there is a minor mistake, just do the edit. I don't see the point of announcing minor changes, or error fixing. But if you feel that the change is important, feel free to post about it. I have done a bunch of minor fixes, and sometimes added/changed several products, deleted dead links etc.. I don't bother notifying about minor changes to emitters that have been added.
If you update a line/emitter completely, just fix the update date, and add your name too it. I don't think there is a need to bump the thread for every minor update. But if the updated emitter fell 2$ in price, then it might be valuable information to some and then be worth mentioning. This is just my opinion though..
The most important thing is that people can visit this thread and see the more important things that have been added without having to browse the spreadsheet on a weekly/monthly basis just to see what have been updated. LED related talk/questions is no issue either..
I started this thread, and the database. I hope that in a year I was just the person that got the ball rolling and that several people contribute. Its nice seeing many other names in the spreadsheet than my own. :) Feel free to look for errors and fix them, im sure Ive done several slip ups. And sometimes, stuff are wrong simply because stores update the emitter.
The kelvin estimates is probably slightly off too at times, but those can be discussed, and sometimes even the stores selling the emitters does not seem to always state the same range either.
The most important thing with the database is that people should be able to find the emitter/tint/mcpcb combo they desire, preferably at the best prices out there without having to browse through all the various stores in order to find what they are searching for.
I also hope that to many people this database works as an eye opener to what is out there. Maybe I did not look much, but even in the beginning of 2013, it seemed like CW (normally 6500K A1/1C) was the most default option by everyone, many people had discovered NW, but most just talked about the 3C. And if people talk about WW, then it was mostly a 3000K emitter. There was a huge gap between the 3000-5000K range. And there was little focus on tint color (not temperature) in general. If you wanted decent CRI, then you had to buy the typical high CRI Nichia 219 (nothing wrong with that). I have started to notice more an more people exploring different stuff lately, and I don't hear much complains from people who tries new things. :) Rather the opposite, people who start disliking what they used to like, or people who develop new preferences.
Testing out various emitters and finding out what you like in what circumstance and in what type of light adds a new dimension to the hobby, some may not be into that. But no matter what people are into, the database should be useful as long as they are shopping for new emitters.