Green arrow represents recipient, red arrow the sender in the current client. Shouldn't it be the other way around indeed?
green, good, in
red, bad, out

Yes -- but it is not like that at the moment. It is red for incoming transactions and green for outgoing ones...
This is correct... the first times it confused me slightly. The transaction ID icons should be reversed, currently they represent the other party and not the user.
And edit...
What could a PR commitee do with the funds, just a quick idea, feel free to comment:
60 articles, 50 infographics, conferences fees, tournaments, videos, translations....

We can always give less to the giveaways and more to the articles.. However it is important to have the right infographics before any giveaway
I think anything between 2-3M should be fine
The distribution looks pretty solid to me. I wouldn't decrease funds for giveaways, there's hardly anything that will make people more interested than having a little share.