Nice work, you've clearly put a lot of work into this - You have a new follower :)
I really like the concept, I think its useful and a good fit for steem data. Sample 5 is my favorite here
I've been using a customized fork of timdreams wordcloud2js to make "steemclouds" for @steemleak donation reports using a similar method to what you described - but sizing by vote loyalty and weight instead.
@sandwich put a lot of effort into steem.cloud too :)
Wow! I had no idea about the "steemclouds" post. Thanks for bringing that project to my attention!