But it’s just an idea.

Otherwise you risk the problem of then assigning all ISP’s to the same ‘duty’ as Phone companies and then discover their can be then NO third party liability for ISP’s for anything over their infrastructure just like Phone companies retain and courts have agreed to.

See the chilling effects will then work both ways.

The court’s or any other private entity cannot , unless legislation stating logs need to be kept for xxx days, force anyone to keep records if they deem it useless, against their ethics, or egregious waste of costs and time.

Is it a problematic situation? Yes definitely.. what can be done? Legislative change can only do this, but that itself needs to be done democratically and using the legislative process in each jurisdiction… and that takes time, energy and fraught with dangers of the public (the community who actually allows laws to be made under community standards and mores ) stating NO and hell NO.

Yes, but a phone company will willingly provide information that matched a phone number to a location (and user account). Nobody is asking the ISPs to do anything beyond that.

Carry on.