I view wikipedia like a dictionary. A general dictionary is not a resource for people wanting to learn about mantises, but it is a tool for people that want to know the definition of the word mantis.
Wikipedia is like the dictionary in this sense. If somebody that doesn't know much about mantises wants to look up the word "stick mantis", they won't find it in the dictionary, but they will find it on wikipedia. From the current version of that page they can see some mantis species that are sometimes referred to (correctly or not) as stick mantises.
A lot of people seem really hung up on labels.
1 in a 100 million people care that this animal is called Hymenopus coronatus.
1 in million care that it is called an orchid mantis.
1 in 100,000 have ever seen a photo of this animal.
Most people don't care.
I'm not a fan of common names as used in the hobby, but they play a very important role in the development of a person's understanding of nature. My wife brought in a true bug from our backyard yesterday and asked me what it was. She thought it was a termite. I know what it is not, but I do not know what it is. I can't even really tell whether it is herbivorous or predatory without feeding it. So, I can call it Hemiptera or I can call it a true bug, but I have no idea what the genus or species is. And it doesn't matter because I have nobody in my life to share the experience of this bug with. Even if I had the correct scientific name, who would want to talk to me about this bug? It's not a species that would interest anybody in the hobby as a pet. Only 1 in 100 million people would even give it a 2nd look (or perhaps a spouse might collect it if she was married to a bug nerd.).
Anyway, the dictionary and wikipedia are media for the general human population. They are not intitially intended to be final resource on any subject (not for a thousand years, anyway). I've found a lot of really good information in those two resources that allows me to relate to the majority of people on the planet. There are new members on Mantidforum all the time and I think resources like wikipedia to provide some many of us with some information from which to base our questions.
I'm just grateful when anybody shows a curiosity about Hymenopus or orchid mantids or white mantises or grasshopper-thingys. I share as much information as I have time for and knowledge of. When I can't answer a question or direct them to a resource, Christian is the person I contact for the hard questions.
I have a lot of respect for the people that donate their time to wikipedia.org. That's a selfless act of giving to the world community as far as I'm concerned. I also respect people that selfishly spend their time advancing their own knowledge about the finest details of a subject to the point where they share nothing. Christian donates a ton of time to keeping us all in line here and it is GREATLY appreciated!