The "correct" way to play "Pets 'n' Friends" is as follows:
1. Do exactly as you please - politely. 'Politely' means to be positive about what you believe (about the game, or anything outside it) and let others do so, rather than be negative about what others believe.
2. Let everyone else do exactly as *they* please.
3. If you have a great idea about how to play the game which you think will help others, post it. But don't expect (or require!) anyone else to copy you unless they want to, because that would contravene 1 and 2.
Everyone has different circumstances, all have differing amounts of time to spend on the game, and many use a different first language. If people don't behave in the way you think they ought to, they may very will think the same about you. Let it pass. If you don't like what they do, keep the company of those you like instead, but don't criticise someone else just for being different. They can't be different from you without you being different from them.
If they don't complete their side of a trade, if they insult you, or if they make demands, report them to the moderators. But if they just want to be different, let them do so, just as we let you be different from them.