https://www.yahoo.com/finance/news/mark-cuban-apos-best-way-…
Executive summary - mark Cuban sez: just buy an S&P index fund, and maybe put 10% of your savings into Bitcoin.
That sounds like a far too reasonable viewpoint to be shared during a bubble lol.
A much worse sign is Floyd Mayweather promoting an ICO a couple of months ago (true story). It lost money immediately. Apparently Paris Hilton’s been doing that too.