The character limit tells you to be more concise with your writing .

I agree with some of these but I disagree with others, the minions for example. I love my Fat Cat, I waited patiently for my retainer to come back with him, I have him out everywhere I go. I don't want to not be able to have my Fat Cat with me in the GS...

Also, auto-logout, the only time Tonberry had a hard time with congestion in the GS was when it first came out and when the jumbo cactpot was being drawn. There have been no other times where the GS has been so congested that no one could teleport to it or leave the Chocobo Square back to the main hub.

I think with the spamming it is harder to do, they could disable all abilities in the GS but then people would find another way to be annoying. Much like the emote spamming before the dance-off GATE.