(Question) What is happy hour on indiegala

http://support.indiegala.com/customer/en/portal/topics/726114-happy-hour/articles

welcome to the internet
http://bfy.tw/EzLP

If you want an overall explanation, it's a temporary event on bundles individually that allows people to buy multiple copies of the bundle at a discounted price (as they get additional copies of the bundle), so it's great for giveaways and specially for group buys.

I thought I'd never use it, but I bought a bundle via group buy on happy hour and it was well worth it. Spent $1.91 for a $3.99 (lower launch price) bundle.

In case you're interested in indiegala groupbuys that all make use of happy hour: http://steamcommunity.com/groups/groupbuys/discussions

Discounted price for their bundles.

People then buy them in bulk and split them, so it costs ~$1 per bundle instead of $4.
Go to GroupBuy Steam group if you want to get in. http://steamcommunity.com/groups/groupbuys/discussions
Be aware you will buy and collect more game than you could ever play if you start buying them (and mostly craps, but some are ok).

This was the explanation that helped me to understand it :)
https://www.steamgifts.com/discussion/o0EVj/please-explain-indie-gala-happy-hour-for-the-especially-stupid#HovYNVb