However this brings to attention the fact, that i'd would be nice if BB admins would start 3rd party tool certification program. Then users could be sure, that they are downloading at least non-harmful program. The other thing is that 3rd party tool developers play an important role in making BB a more fun, accessible and popular game.
Assuming you're using Hattrick as your model of what a "certification program" might look like, it did nothing to make users "sure that they are downloading at least non-harmful program". They could track the offending user and kill their account, and take the software off their list of approved apps, but they did no type of testing beforehand to make sure approved apps were not being antisocial.
What they did (and do) do is ask developers to submit the list of features their app would support, and then approve or disapprove those features many months or even years after the request was submitted. Once approval for development was given, the developer would then complete their app, tell the admins, and the app would then be listed.
I'm not sure BB should aspire to that model.