Sure, it "furthers their tracking and advertising network".
But do they track you through chrome, as asked?
I have Google Analytics on my startup's SPA when it can't even be crawled by Google due to the framework we use. The only logical explanation is that Chrome sends data back on the sites you visit.
* Any of the disableable features like safe browsing
* Addon code update checks (chrome web store)
* Certificate pinning list updates
* CA certificate bundle updates
* Browser code update checks
* Uploading crash reports
* HSTS list updates
* Settings synching
I also believe Firefox has analogues for every single one of these.
What it comes down to is that Chrome sends a whole bunch of information about me to a company who's main product is serving ads. I don't know exactly what data they send or how they use it, and that in and of itself is a major problem.
In the end, sure, Firefox does the same things. But Mozilla's core business isn't selling my personal information to the highest bidder, so I trust them more than I do Google.
How is that relevant? Astroturfers etc have been buying old well-historied accounts for ages now, so it's not a very reliable method of distinguishing shills anymore. It's only useful for sockpuppets and amateur shills.
Either there is proof, or there is not. The burden of proof is on the one making the argument.
So which is it?
If that was true, new accounts wouldn't be clearly marked as green in the comments.