True, but a link to an external site could be deemed as posting material likely to cause undue annoyance, provocation, upset or embarrassment to any reasonable person. Unlikely I’m sure, but who knows what constitutes reasonableness these days.
I’ve put my (now road legal) ex Mega-Grad up for auction if someone knows of anyone who might be interested... https://www.ebay.co.uk/itm/284029963113 [Admin, please delete if post considered inappropriate]