Some companies have been really cool with doing transfers, no charges whatsoever, others charge a small fee which I think is very reasonable e.g. u-he has a rule “license transfers cost €15 if you have owned the plug-in for less than nine months, and free otherwise.”, FabFilter ask a small fee per transfer, others ask a pretty considerable amount e.g. Melda Production asks for 20% of the full price, which means you get very little back as they continually offer products at at least 50% off RRP in sales.
I don’t mind really what transfer policy is decided on so long as one is. If transfer of individual items is too problematic then it would come down to transfer of an entire account and I don’t see many people wanting to do that.
One thing is that is clear is that if VCV continues requiring online verification when opened, even when eventually there’s a plugin version, then it should be very easy to ascertain who is using libraries they are licensed for and who isn’t to prevent someone selling something on that they’ve cloned.