I would rather see the banners. They're a good indication of how much a company is likely to respect my privacy: no banner is best (because it means they're not tracking), a banner with an easy opt-in and a way to dismiss it is okay, and a banner that doesn't allow an opt-out I'll just leave active forever. It'll annoy me anytime I visit the site, and that's the point; I'll avoid sites that do this when I can.
One example: PayPal has a huge banner (often blocking the "pay now" button) asking for permission to use my data for targeted ads, and there's no way to dismiss it other than agreeing to it. So I leave it there forever, and every time I use PayPal I have a little bit more of a negative impression of it.
It's also good to know about them when I'm sharing links with friends - I'll be very hesitant to share one with someone who I know is using a mobile browser, because they definitely won't have the tools to avoid tracking like this.
Once you visit a site, you then open the uMatrix tab provided to decide which 3rd party scripts you will allow to run. Typically you only enable a few.
I'd much rather know about tracking this way (the list of 20 blocked scripts) than they other (they already ran, but at least the site popped up a banner)
One example: PayPal has a huge banner (often blocking the "pay now" button) asking for permission to use my data for targeted ads, and there's no way to dismiss it other than agreeing to it. So I leave it there forever, and every time I use PayPal I have a little bit more of a negative impression of it.
It's also good to know about them when I'm sharing links with friends - I'll be very hesitant to share one with someone who I know is using a mobile browser, because they definitely won't have the tools to avoid tracking like this.