it would make recruiting and communication a lot easier

If you can figure out how to make it not confusing then +1

It has worked in other games. Doesn't seem to confusing. However, I will also say that there are tons and tons of GL facebook pages which will essentially allow you to do the samething. There are "pubs," "traders," "leaders," and many many more. Sure, it's not as simple as watching one message bar scroll, but still...

I think the a 5 energy cost to post in the Galaxy Chat would be adequete to stop most spammers and mass jumble.....also Maybe a Private comm(ship to ship Private comm) that is for free and ship to ship comms(public) can become free or at least reduce the cost to 1-3 energy?

I would be happy with a global chat first before we have anything else of the type of chat out there. Ships have comes, which for the most part tend to take care of the ship to ship thing.

It might help keep more people if done right. But that is not hard to do really.

I think for it to have a chance at working (AKA being able to actually have a conversation) you would have to limit how many people are in 1 chat, otherwise you could easily have multiple convos going on at the same time and never know who is talking to who. Id recommend having the chat limited to anyone you have a pact with.

Random guy on chat: Please please please can anyone give me this and that??
Player1: Shush it, earn those stuff yourself!
Random guy: Hey Player1, you can help me right??!!
Player1: ...
Player2: This is not the place to beg, please, I'm trying to have a conversation with Player1.
Random guy: Hey Player2, you can give me this and that right??!
Player2: *Fuming*

We'll be seeing something like that on chat

Actually, a game I used to play had a good system.
In order to post in the wc, you needed a speaker. You got 5 speakers per day, up to 30. After that, you had to buy them with in game money that cost real money, that way, if they were spamming, they were wasting their own money.