[split] f35v parallels "oak and ivy"

[MarcoP]

Additionally, the specific context of forum conversations makes it so that often it is clear from preceding posts which manuscript one is talking about.

If by specific context you mean "previous post in the same thread", I may agree. In this case, the relevant context is in another thread and soon it becomes invisible.

Personally I think it would be good to encourage the practice that at least a link or MS name be added when it is not clear from context. When I'm posting something in a hurry I try to at least copy-paste the link so people can check the details they are interested in.

Admittedly, this is only semi good practice since links can go dead in a few years.

I agree: links are not reliable. Manuscript library references are (they can change too, but I think this is extremely rare).