But I am more afraid of unnecessary third-party applications/extensions on my computer and collecting logs about all my visits by VPN provider than the fact that someone will collect information at my one address.
Most ISPs keep a log of everything that you do online, and many will happily hand that over to your government with no resistance when requested to do so. This is known to be happening in many Western countries. I would much rather trust a VPN provider who has previously been taken to court to prove they don't keep logs than I would trust my ISP who have to do what the government tells them or be shut down.
We discussed public VPN versus private VPN before. In either case, the provider cannot track anything except for connections to VPN. There is no question of trusting the ISP.
This is a concern, especially for users who use a number of specific privacy related add ons and tweaks which make their browser much more unique than most users. There are steps you can take to mitigate this. Disabling JavaScript, Flash, and WebGL is a good start. Use a user agent spoofer. Keep your screen size and resolution as generic as possible. You could also consider using Tor, or run a completely uncustomized as-generic-as-possible browser on a virtual machine.
It is not as simple as it seems. If you disable the javascript, then you will not be able to use modern sites. This is only a temporary measure when you really need to hide. Plus turning off the javascript will stand out from other users. It is not yet known which is better.

I disable javascript, cookies, I don't have java, flash or other specific plugins.
So there are no info about fonts, canvas, resolution, audio formats, webgl and etc without javascript and anyway amiunique.org reports that I have almost unique fingerprint.
Maybe "completely uncustomized as-generic-as-possible browser" may help to merge with the crowd, but you need to configure it or find one ready and test it. The main thing is that the crowd should not be too small with that set at spy site.