The article we're commenting on makes it clear the big guys aren't complying. Also, I reject the notion that you have to spend inordinate amounts of resources to comply, in fact it is the opposite. You don't spend money on data you don't store, after all.
Co. I used to work for is microscopic in comparison to FAANG, and we didn't have a single cookie banner or anything of the sort and have absolutely no problem complying with GDPR because we track nothing and collect nothing more than what is strictly necessary, mostly because of individuals like myself who push hard against any data collection that doesn't have a well thought out reason. Hell, even Github with their massive scale has no problem with not having cookie banners or anything else of the like. This is a problem of will, not resources.
> 2. Makes the rest of the internet worse (e.g. people show MORE ads because they are less effective because they show me boats and I hate boats)
Perhaps, but we're already drowning in them as-is. The internet is unusable without uBlock and DNS-level adblocking.
> 3. Makes data brokers even more important because companies can't get data anywhere else.
If we make data radioactive, then data brokers wouldn't be able to exist. What we need is stringent and broad laws that limit data gathering, period, regardless of the source. Whether you collect it yourself or pay someone else to collect it for you is completely irrelevant, both should be made equally painful. I'd also have no qualms with making sharing any data that you do collect even more of a pain in the ass and a nightmare for everyone involved, this whole gray market has net negative benefits to everyone.
> 4. Reduces competition because the incumbents will always have more data than startups (Nike knows I wear a size X and the startup can't ever get that data)
Why would Nike have this data in the system we're talking about (data radioactivity)? How is this data even useful to anyone, other than for tracking purposes to make a unique profile out of you? Companies shouldn't have this data unless it's a podiatric clinic or something like that, whether it be Nike or this imaginary Shoe startup that needs feet sizes for whatever reason.
I guess I could see there being genuine usefulness for people who have feet sizes that aren't the norm to find footwear that fits them, but there's no reason they have to have their entire essence tracked by every company on the internet for that.