Well, exactly. And of course the IP addresses are dynamic. So it seems a bit silly to treat a whole network as suspicious because someone on it (amongst thousands or millions) is doing something suspicious...

I get the same thing on Wikipedia sometimes because someone, who at some point in the past had my randomly assigned IP address, once made some dodgy edits. (Solution: reboot router to get new IP address!)

I suppose if we had static IPv6 addresses (each account always gets assigned the same IP) then this would be less of an issue.

Companies need to stop treating IPs or groups of IPs like identifiers. When I'm in my office, I can't access yelp. They blocked that ip range for some reason, maybe because of something we did. We block entire countries at work because we were getting a lot of DDOS from those countries and we don't do business their but it ends up blocking a lot of legit use cases and wasting a lot of time.

Your first mistake was using Yelp in any capacity[0-6]. Thankfully Apple is trying to drop Yelp by having their own review and photo system[7].

0: https://news.ycombinator.com/item?id=20625232

1: https://news.ycombinator.com/item?id=3884515

2: https://news.ycombinator.com/item?id=14238576

3: https://news.ycombinator.com/item?id=19220988

4: https://news.ycombinator.com/item?id=22706307

5: https://news.ycombinator.com/item?id=486468 (all the way back in 2009)

6: https://news.ycombinator.com/item?id=6452410

7: https://9to5mac.com/2020/08/26/apple-maps-reviews-inhouse/

I worked at a company once that decided to add an entire range of IP addresses to their firewall’s deny list. Seems an executive had their personal home network pwned, and an unknown figure told him it was from a certain part of the world.

Said executive made enough noise and put enough pressure on the network engineers to get it done without question or delay or...most critically..a reviewed and authorized change control ticket that would have caught what was about to happen

Following Monday help desk was underwater triaging tickets from the entire office full of team members we had just denied from the corporate network, and customers who now couldn’t use our product at all.

That's the point though, it's not just someone doing it that has triggered their defences, it's many - most probably unwittlingly because of malware or even some of those cheap shitty games that mysteriously steal your battery and/or data allocation with unknown background processes.

The point is thus: they are receiving enough bad traffic from that range to have determined they need to filter it somehow.