Beneficial for everyone as it's more transparent, bad for Britain as a whole as Scotland and NI are already riled up having majority Remainers winning in these principalities.

Knowing the future plans for leaving means they can decide to say "Fuck that, EU sounds better", and fuck up the parliamentary vote or even go out on their own and rejoin the EU separately.

Could end up with a United Ireland, an Independent Scotland and only Wales and England officially leaving the EU, for better or worse depending on the outcome.

Why is everybody convinced that transparency with respect to the governments negotiating strategy is a good thing? It will weaken the British position horribly.

Negotiating trade agreements?  No, obviously showing your hand early in that regard is stupid.

Everything else like Visas, Erasmus programs, joint research programs, hell even involvement in fucking ESA is all going to have to be discussed at one point or another.

This uncertainty in virtually everything involving co-operation with Europe is going to have to be discussed. Knowing what the fuck Britain is actually wanting to keep or remain involved in is better known sooner rather than later so A) People in the UK don't have to worry about their long term plans involving Europe (and can get around the problems if and before they arise) and B) Europe can figure out what the fuck the UK can still contribute to other than independent trade, and plan accordingly (or know that a current EU-UK plan doesn't need a complete reworking).

It's more knowing what the hell this "Brexit is Brexit m8" shite means, as it keeps being thrown around with nothing to base it on and doesn't stabilise the situation at all.