There is some suggestions :
Block so people can't put 1000 ships to one spot.
Like make it 1x on one spot , currently i see people flooding server with 50+ ships on one spot.
But still allow people to put same spot where other people place it .
Whenever site getting popular , by popular i mean about 50k-20k registered, maybe less, make it so if you login , then it's asking random question, to make website more secured , because there is a lot crackers nowadays.
add back auto betting, it's good for people who doing small amounts of bets. I don't really know why this was removed :p
Could you also add player stats? Like we can check how much we have made, how much we have lost, how much we have deposited, how much we have withdrawed, what was highest won. and so , could be much easier for us :p
Currently that's it, also waiting for forum

EDIT:
Chat :
Maybe make it so people can buy username glow/color with bits, like 100 up to 1000 bits cost color/glow, make this so people can buy username icons? also what about smiles? its really lame without smiles

also should be cool if we can tip people on chat, well i know you're adding new chat or something like this , but still :p
EDIT: one more suggestion about chat, make it so we can private chat with people? It's could be really useful if we can talk to someone without sharing our skype with everyone.
We will definitely start adding in captchas this weekend for all logins. And as for player stats -- yes it is definitely coming. You know we have been busy building a whole lot of stuff
I don't like selling merchandizes on the site so maybe you can level up by posting good comments in chat or something?