I think different countries have different PPP, so I wouldn't say it's fair to compare directly like that. I think ease of access to such services and how much it costs in relation to wages is a better gauge.
I think 10Gbps in general is the max. I haven't thought about that level of speed because it's expensive, for both the plan and the need to upgrade all my network equipment to support 10Gb.
We're early adopters. Early adopters have a higher tolerance for (and ability to deal with) things like bugs, confusing UI, uncertainty, and probably continual change for the short term.
Not to mention, a lack of content. While it's populating nicely it's still not like Reddit, especially for niche subjects. You definitely have to endure a lot of shouting in the wind situations while this builds up.