Not concerend at all about threads knowing where I have been.
That is not the issue here.
The issue is that without lowering the security on your computer it is virtually impossible (if not impossible) to post a message or vote on any version 6 copy of Threads.
I am not sure what firewall (if any) you are using, but in order for me to post on a threads site, I MUST configure my software to allow access TO/FROM that site from/to my computer.
What is to stop that webmaster abusing that additional permission that I have just given his website to talk to my computer.
B.