Now this is fucking stupid. This is definitely going too far as well. Though it's so over the top that I'd even suspect it's parody.
But still, Twitter is clearly a work tool for him. Maybe consider logging off on his sunday holiday birthday. People won't stop messaging "official Pokemon accounts" just because it's a holiday. He could thank the happy birthday wishes tomorrow.
Japanese devs work enough as it is, he should avoid bringing work home when not necessary.
I don't get why telling the dev to stay away from the internet is better than telling entitled fans to not bother people about their work
What did this guy expect Masuda to say?
1) Yeah, it's great, we're ripping fans off for all that money!
2) I'm sorry it's not in my hands, but yeah it sucks
3) The company line
4) Wow, that's a unique perspective, I'd not considered that before
5) Yeah ok, I'll put the cut Pokémon back in the game first thing Monday
There is literally nothing he could say that would appease him, because he's an entitled and probably deluded fan, and it's better for everyone if we don't encourage them