So... you don't pay for the game credits in real world money, then?
When by "pay" you mean this small amount of 4 credits per game world per day, then yes, I'm paying. I actually like this type of payment more than in other online games where a few players invest real amounts of money in some extras and are way stronger than 95% of other players. Or where you get annoyed with advertising.
But, yes: i don't consider this as a damage. There's how many airports out in our simulated world? Work around it, get creative, use other airports.
Sorry, i have to say it: this whole discussion reminds me sometimes, when I watch my daughter playing in a sandbox, and I see other kids argueing about their toys. And when they're not getting what they want they go and run to their mommy or daddy and complain. Admittedly, the case is a bit different here, abuse *is* possible in the game and AS Team has to decide sometimes, but really, come on. It's a game.
Maybe it's a pitty that we can interact with each other in the game and in the forum, but never really speak with each other or even (easily) have a beer with each other (or any other beverage, of course) and invite each other for a BBQ and have a nice chat and a laugh with each other.
Seriously, step back a bit, this is a game, we all want to enjoy it. We want to compete with each other, like in a sports event for fun. We don't win a big price when we're successful, we're not enemies. And yes, this also includes that I wouldn't want to see an abuse of the (coded) rules like ordering 100 L4T at the beginning and using them for slot blocking.
This issue has to be tackled, but in my eyes at a different spot: why not limit the total number of planes (in addition to their value) available in the immediate delivery program? Let's cap it at e.g. 20. That would allow for a good mix for most cases, AS Team could even allow for a manual override if someone argues his ideas and slot reservations at the very beginning wouldn't be an issue. The flights between different airports of one city: sorry, AS Team, but in my eyes, this has to be blocked in the code, if it is something that is not allowed. I'm part of teams for online games for almost 20 years now, and it's my strong believe that besides from some really hard to code things (like nameing policies), all rules should be laid down in code - or, the other way round: everything that's allowed by the code used for the game world is legal behaviour (besides abusing bugs). The code can be changed, of course, to get rid of unwanted behaviour, but as long as it's not bug abusing, it's not cheating (and well, I'm quite sure you now can bring up some cases to me where i would decide otherwise, but hey, execpetions confirm the rules).