I don't think that not using URLs is a sensible choice - that essentially moves the problem onto Google, and Google Bombs have been a fine way of confusing that. The RFCs do, actually, try to tell people not to just put URIs into text "unadorned" - you're meant to wrap them in angle brackets, for example - but in practise this is understandably ignored. See https://tools.ietf.org/html/rfc3986#appendix-C - or should that be https://tools.ietf.org/html/rfc3986#appendix-C? But yes, whole-heartedly agree that heuristic parsing algorithms are tricky, and that marketing teams need to test their marketing is functional.