They'll throw a wrench in your "free as in freedom" at some point or another.
VCs are in business to do exactly one thing: make all of the possible money, forever. If that means making it "source available" and charging out the ass once you reach a certain point, they'll do it.
Looked another way, isn't it great that we, as a society, are allowing such experiments to be conducted. At the same time, training people to build stuff who will go on to build other great stuff even if this particular experiment fails. Sort of like cambrian explosion.
VCs are in business to do exactly one thing: make all of the possible money, forever. If that means making it "source available" and charging out the ass once you reach a certain point, they'll do it.