BAT is the Basic Attention Token, its used by Brave and other sites such as Pokemon Showdown, Kiwifarms, and other cyrpto savvy sites. Its essentially a basic ez modulum to enter and trade.
BIT is Bitcoin dumb dumb, the magical and OG crypto that crypto dummy sites that can't/want to get, SSL verification for Credit Cards, or have been denied by vendors because Virtue Signaling use. It is a major crypto, along with Bitcoin Cash, Eterhium, and LiteCoin.
4chan is a good example of a crypto dummy site, because it does not evolve to the market; the crypto acceptence is simply a means to evade vendor denial while still making money from pass sale.
However; this is a good thing for crypto savvy types, who can take advantage of the dumminess of said sites either by finding easily cheap means of lower crypto then trading up, or by using the general dumminess of the non savvy folk to charge them a service fee for doing the work for them. (The external site that gifts you passes costs 5 more dollars than it would to do it yourself)
Essentially; using Brave is taking advantage of the dummy nature of the site market; You accrue crypto just by doing the things you normally would on 4chan and the interwebz; but you automatically block all advertisements. The ones that get through, you get paid for. Bing bang boom.
Banners technically count as Ads, so triple bing bang boom.
You actually make more money shitposting on 4chan using Brave, than the Janitors do cleaning up the place.
This is an infinite and supreme victory, if you are willing to jump through the hoops.