I did a little reading up on Gab, and it isn't yet a tipping platform, just a Twatter clone, but intending to be more resistant to censorship. They do say, however, that they are looking at ways of enabling tipping.

I think this shows that Steemit is at the forefront of the tide of history, and there soon will be several platforms that seek to reward creators of content financially.

Now I have to read about minds.com. =)