- The system URLs. They're just simple numbers, and this won't work too well for very long. Some form of encryption or random string assignment would obscure the total number of systems, prevent accessing otherwise hidden clusters and make private system sharing more secure. This isn't really an issue yet, but you should consider these things for the future.
- The system completion timer should start with the first port signal, not with the loading of the circuit. This would eliminate added time due to loading or lag and would allow the player to properly take stock of the whole system.
And finally, I think there should be a "suggestion" topic category. For, you know, suggestions.