They are not really trustworthy especially when they are located in the US or related countries like UK, Australia or even Canada.
But still, i just want to stay anonymous to goverment, google, facebook and everything. for example i cant create a google account even without my phone number so i would need to buy a new unrelated prepaid SIM to accomplish that.
Which i would actually enjoy alot even for using signal. But my SIMs location is trackable isnt it?
you're gonna wind up burning 5000 calories a day staying under the radar and then slip up with something totally innocuous anyway. save yourself the effort, stay away from the obvious stuff and assume they can find if they want to, because they can.