I think the graph title explains it pretty well, but here's an example from it. If you have a task you do 5 times a day, and you are able to optimize it to save 30 seconds each time you do the task, then you can spend up to 3 days doing that optimization before you've wasted more time than you'll save (over the course of 5 years).
Pretty helpful in the context of something like automation, you can figure out how long you should spend automating a task before you've wasted more time than you would have just doing the task manually every time.
The original artist (Nena) also has an English version, titled 99 Red Balloons. Though I do like the Goldfinger cover as well.
If they did that it would be pretty easy to spot for anyone looking, all the bot accounts would be connecting through the same IP address(es). For it to be believable, you would need thousands of Ukrainian IP addresses, owned by Ukrainian internet providers. What Russia did is an effective way to achieve this. With thousands of sim cards on multiple Ukrainian mobile networks, the traffic is very hard to distinguish from real Ukrainian internet traffic. Of course the downside is that all the devices with those sim cards have to be in Ukraine for it to work. It's also possible that at least some of these devices were essentially just acting as VPNs for more devices in Russia.
I've been using https://wefwef.app (you can install it to your homescreen like a regular app) and really like it. The UI is very iOS-like, but it works perfectly fine on Android. Apparently an Android theme for it is on the roadmap. Before this I was using Jerboa, but ran into issues with sorting/filtering. I think those issues are fixed now, but I'm happy with wefwef and don't see any reason to go back.