Selective sampling and selective selection? Wtf have you been smoking bro? Give me some of that sht!
What is "selective" on the graphs? There's an X and a Y axis, time and market value. That's it, nothing taken away and nothing added.
Justification to chose a logarithmic scale? Well you answered that yourself didnt you: You can Draw a trendline, see the trend of the curve and make a prediction.
It ain't proper science? Ofcourse not. The sentence following that is fkn stupid though. "Manipulative selection of Methods until a wanted result is given." Erm... No?
You are free to make a graph on Your own proving me it's possible to stick to facts, as theese graphs do, and get a different result.
Definately not this.
Log scale is used not to trick the eye but to make it possible for the eye to even see it. BTC have gone up too much so if you're gonna make a graph showing all the rises in detail you have to make the Picture as big and high as a 3-story building. To use 1-10 instead of 1-2 is just this - a means of showing what's happening without printing the Picture on a 10x10m wall.
But Yeah, ofcourse, it will be wrong sometime in the future. Nobody is arguing that.
Obviously you do not fully understand the argument: If you can apply arbitrarily chosen methods to arbitrarily chosen subsets of data on an arbitrary scale, you can manipulate your "analysis" to yield any result you want to have. Therefore such an analysis is also arbitrary and has no predictive value.
Please reduce your use of insulting language.