It's not just ads, it's also not having the ability to only allow 3rd-party scripts and frames via whitelist.
Since I don't use Safari for "normal" browsing, I can't recall any specific problematic sites, but just opening some random news headlines I get the following unwanted behaviours, roughly half of which are nags to install the iOS app:
* theverge.com - nag to disable ad blocker
* nbcbayarea.com - nag to install app
* youtube.com - nag to install app, autoplaying video, all the rest of the junk that YouTube annoyances blocklist blocks for me with uBlock: https://youtube.adblockplus.me/
* lifehacker.com - annoying animated recommended story gif (to be fair this isn't an ad-blocking issue, it's just a configuration setting that Safari doesn't offer)
* bloomberg.com - nag to install app, nag to subscribe
I’m not getting some of the app install nagware, but I’m
also not getting them when I disable content blockers so it may just be a cookie thing. Also I couldn’t manually block the nagware on the NBC site using the share extension.
I only use YouTube mostly for official AWS videos and then I use CornerTube. I usually don’t see ads. Do content producers get to choose when ads are shown?
> Do content producers get to choose when ads are shown?
That's my understanding. Also a mostly non-YouTube user though, I find the web interface really unpleasant - if I were going to "use" it on a regular basis I'd probably use youtube-dl.
Since I don't use Safari for "normal" browsing, I can't recall any specific problematic sites, but just opening some random news headlines I get the following unwanted behaviours, roughly half of which are nags to install the iOS app:
* theverge.com - nag to disable ad blocker
* nbcbayarea.com - nag to install app
* youtube.com - nag to install app, autoplaying video, all the rest of the junk that YouTube annoyances blocklist blocks for me with uBlock: https://youtube.adblockplus.me/
* lifehacker.com - annoying animated recommended story gif (to be fair this isn't an ad-blocking issue, it's just a configuration setting that Safari doesn't offer)
* bloomberg.com - nag to install app, nag to subscribe
* forbes.com - nag to install app
* observer.com - autoplaying video ad
* twitter - app nag, login/signup nag