I understand what you're saying = the web IS fast.
But your comparing what I'd call a "flash in the pan" to over reaching tech.
Ok, but there are not a correct comparison. Microsoft has a monopoly in the OS world...VB can not obligate the hosters and forum admin to use it xD
Also, Microsoft is easier than Linux for the newbie for use. That's very important, K.I.S.S. (keep it simple and stupid). Try Xenforo for a week, and tell me if is easier of vb (for navigation, usability, etc.). Many users complain the execcise difficulty of the VB and IPB interface. But the interface of XF is similar to Facebook, very friendly, easy and funny. That is a great advantage. For a user friendly pointview, Linux is vbulletin (many unused features, many bloat and a complicate interface etc.) and Xenforo is MS (easy).
Xenforo, PHPbbs and all the others may have an impact in the short term = but in the long term, VB will win. Whatever VB needs will be adopted, stolen, whatever.
The main problem imho of vb that heir development is very slow. Was the reason? VB has
over 1000 open bugs, and with this incredible amout of bugs, you can't innovate and introduce new feature or change the frontend. The user needs first a stable product.
I liked the reaction of IPB, that ispired of many feature of Xenforo for satisfy their users. VB reaction? Nothing! A new version with 2 unasked integrations...
IMHO the success of Xenforo depends mainly on VB Big Boards switch, like Digital Point, AvForums etc...the second is planning a switch in the first term, and it's probably that DP switch in this year.
Well, it does have one thing going for it that I do respect = it isn't free.
I totally believe in paying for software..... good software.
Totally agree with this. Now the main advantage of VB is the good number of premium mod/mod creators that creates great products and supports it (Vbseo, DB-Tech, forumcoding, vbcover etc.). Xenforo doesen't has this...and now this a problem. I don't like to have "free mods" that you are obligated to donate to the author just for a "bit" of support and you are not sure to have regular updates and bug fix...that is the reason because i suggest often to DBT to speed the conversion. xD