They founded a company, OB1, with a $1 million venture capital investment from Union Square Ventures and Andreessen Horowitz. [...] OB1 received a second round of investment for $3 million in the fall of 2016.
OK, so just to clarify, this is a for-profit project produced by a central party with no stated plan for monetization. That is IMHO dubious. Their website http://ob1.io/ includes a couple of hints as to how profits may be eventually sought: a search engine for Open Bazaar and a cloud based Open Bazaar store launching service. Then there is the fact a small cabal have probably premined all the easily obtainable coins (SYSPOOL, Give Me Coins, F2Pool), which means if the value goes up they profit handsomely.
Note that http://ob1.io/about.html lists some more investors: BlueYard Capital, Digital Currency Group and William Mougayar.