Gosh Richard, I wish I could just say a few words to allay your fears, but I can't. Most enterprises, public or private, usually only have one or two at the top. But the maintenance is not an issue for me though and upgrades are handle by a committee of Leaders who must weigh and balance what is required to keep WikiTree operational. And I totally agree that I don't trust sites that are operated on a profit motive. Businesses fail, would you have thought when you were a little boy that Sears would be no more?
The nice thing about a volunteer based non profit operation like WikiTree is that it doesn't take a lot of money to run it. The few bits of advertising on WikiTree are sufficient to pay the bills to keep the servers running. Chris Whitten, who founded WikiTree, had a wonderful post on G2G awhile back on the plans to keep WikiTree viable for many many years. I just can't find it. Maybe someone else reading this post knows it and can share it.
And user friendly is in the eye of the beholder. I caught on to the syntax in the edit format quickly, though I do have more than a few years of programming under my belt and was 8 credits shy of obtaining my B.S. in Computer Science when I was asked to....ah leave school for a temporary period. They never should have given me the Super Administrator Password to the schools computer system and we'll leave it at that. LOL Gaile offered a predilection to HTML coding over the Wiki Markup Language in use here. All I can say is I am so glad we don't use that, talk about user unfriendly to those not used to programming. While a stronger means to create than Wiki Markup, it has a lot of floss that is unneeded on a Wiki platform. And as Gaile pointed out so succinctly, a WYSIWYG editor for WikiTree is a bear to install and maintain. Not to mention all the present files would have to be converted to the format and syntax it prefers and that is what scares me about it.
So as they say, it is what it is. And as my Grandmother used to tell me, don't worry about things cause you only suffer twice when you do.