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What is a usage of LBRY?

LBRY is a kind of a database of user-created content. You use LBRY tokens to buy the content from the author. Most content are videos right now. It's like a mix of iTunes and Youtube, but paid.

"user-created content" is usally a trash, who will pay for it? Youtube is free for watching! Well, thanx for info, I'm monitoring this coin, but for speculation. So far it's still falling, maybe 4k soon https://www.tradingview.com/x/6qdMFGfE/

User created content is trash? Have you ever taken a look at content creators who are on Twitch, iTunes, Patreon, etc.? There are loads of people who are willing to support content creators if the content is good. Besides, the only reason Youtube is able to provide quality content for free is because of advertisements.

User created content is trash?

Basically, yes, as soon as someone starts doing something worthwhile, he can monetize it with existing methods and does not need donations. IMO.

There are loads of people who are willing to support content creators if the content is good.

For this, no special coin is needed. Creators of content that need donations usually indicate their wallets (in BTC, ETH, LTC, DASH etc.)

the only reason Youtube is able to provide quality content for free is because of advertisements.

Advertising is the key stone in the attention economy !!! Thats why I belive in BAT.