There is an argument whether investing in securities that are non-public and have no official price (especially ones you have a controlling stake in) should be

There is an argument whether investing in securities that are non-public and have no official price (especially ones you have a controlling stake in) should be illegal (even if it isn't right now). I think that's what the article is about. If he contributed $5000, bought bitcoin at 1 cent and had the same amount of money now, it would be a non-issue.