I've steadily added more and more. There really isn't too much to be afraid about. Every member is insured to $500,000. They are repeatedly said that they are not going to change the free trade structure. Even if they get bought out or anything like that, the amount to sell your holdings would still be just a tiny amount compared to what it would have cost you to accumulate the shares anywhere else.
I too love to be able to pick up a few shares here and there. Did I hustle a bit on Tuesday and make an extra $50 - into Robinhood it goes so I can bulk up my dividend paying stock and have that earn me even more.
Good to know, thanks!