But, I don't think those in the screenshot are really loaded with 3000 btc.

Why no? This screenshot can be from 2010-2011.

Or anytime from 2009 -2013. But I don't think people were testing out things like these back then .

Back when 3k was nothing it was more of an experiment than anything anyone thought it would be

Hope that in this year the price will increase up to 500-700 USD.

Why you think so?