Hello @jozef j
You should be aware that in the wider BOINC community there are many institutions that make their systems, hundreds of them, available for distributed computing projects as part of their own community engagement policies. Some organisations allow their systems to be controlled by one or more of their system administrators who can choose which projects they participate in. while others choose a single project and stay with it.
There are also a number of people who have more money than space, so they rent system resources in the form of virtual cloud instances, sometimes very large numbers of them at any given time.
While some feel neither situation is in the "spirit" of the challenges, both are participating legally and honestly, neither are the thieves you have accused them of being.
Making use of system resources without proper authorisation is referred to as "borg'ing", named after The Borg, a race of Star Trek aliens. It is strongly discouraged across the wider crunching and folding (Folding at Home project participants) communities and has resulted in people being both banned from projects entirely and the police being involved.
Please do not call people thieves just because they are capable of utilising more resources than you.
Not exactly true. The term "borging" is also used for when you do have permission to use someone else's system. It isn't just illegal or unethical uses...