I sent an email to Lee Nicklen, and he replied! I wasn't actually expecting that. And he also said that the Nitrome Wiki is used by a lot of people. Some of you asked what he said, so I will put it here. This is exactly what he said:
Hiya NTPYTO, ;O)
Thanks for your message. Means a lot.
You're great too. Keep up the great work you do with the Nitrome Wiki, all
that time and effort is worth it - many, many people use it.
Take care, and keep listening and keep writing!