There’s a reason why most providers don’t allow that feature anymore
Yes, cheese pizza
It’s said that port forwarding is a security risk
Says who? Assuming a fully patched system/client and a properly configured firewall/network, I'd love to hear more about these "risks".
Also, qBitTorrent works just fine without it.
Only if you don't care about seeding
It would appear that this is indeed the same ghostery that sold its users out to the highest bidder.
I recommend using AdGuard which is free and doesn’t have such serious privacy issues:
also there’s no need to pay, the free tier is more than sufficient