The issue is that if you use Tox you support their foundation, the Tox Foundation™ which deals with money in a shady way and deceive their users just in order to grow.
I, for moral and ethical principles, don't want to have anything to do with such a thing and believe it's necessary to let people know about the situation.
If they couldn't even respect an ex-developer privacy[0] how can we expect them to run a foundation and create a supposedly secure instant messaging?
[0] https://archive.today/Y6LEw