I still think the number one biggest handicap is Android to good, articulate forum participation.
Number two, is we are getting closer to 200 lpw.
Number three, arguably, is mysterious closings of threads and diversity of ideas.
Number 4 is economy.
OTH, there is a future:
Brick and mortar stores have a looong way to go to get good lights. I have given up on them. They are just interested in shelf life longevity and markup. Perhaps, a dead topic. Of course, the 18650 is the future.
I think fixed lighting (100 to 300 watt led worklights/200 lpw Philips fixtures) has a ways to go. I also think flashlights suck. Odd ain't I. But I do not see why any camper/runner/hiker/worker/house cleaner/mechanic/etc would ever want to hold a tube in one's hand when it has other purposes. So, I think headlamps/wristlights that you can point/other wearable designs have a way to go. Also, color shifting and beam shaping (without aspheric losses) can go further. If just being able to see for long periods of time is important to you, then the future is boring. If being able to see optimally, then there is a future in the forum.
I do think the future of battery power, fuel cells are MORE exciting than the exciting future of led. Also, future power generation (NOT SOLAR or wind so much) schemes will be more fascinating than LED. It will be interesting to see the politics play out as people invest in one power source or another and start trashing the competition. (Example, google & others just opened worlds largest solar farm, or the us govt. once fracked with nuclear weapons, or Norway is now using thorium for cleanup purposes, etc. etc.)