It depends on the goal of the thread. If the purpose is to highlight the importance of spaying and neutering and the problems of cat overpopulation, that is fine. If the goal of the thread is to say "Yay, kittens, how fun", the thread will immediately be closed.
TCS is a strong proponent of spaying and neutering. Just a reminder of the rules:
2. Please make sure to spay and neuter your cats. Unless you are a professional breeder and your cat is part of a professional breeding program, please educate yourself to the importance of spaying and neutering by the time your cat is 4-6 months old. If you take care of a feral colony, please make sure to do so responsibly by practicing TNR (Trap, Neuter, Release) protocols within the colony. By spaying and neutering, you enhance a cat's quality of life and improve their longterm health. You are also proving your love for cats because in acting as a responsible pet owner/caregiver you are minimizing the problem of cat overpopulation.