I would find it very annoying.

Same here.

Is it really too much bother to ask users what version they are running?
As already pointed out, the legacy postbit shows the info the member has typed in.
Even if it was changed to a dropdown and someone was using an older version you'd be asking them if that's the version they are actually using, which is just as asking them what version they are using.

I don't think it should be changed purely of comedic reasons.

Change the version to a drop down number? That would kind of kill the humour value of the thing, nothing like searching for version 4 or the like, or seeing the funniest version numbers that go way past what's released (*cough* set own profile/forum version number as 999.99.99 *cough*).

Although I do agree with the pointlessness comment... does anyone really edit that field after every single release of vBulletin that comes out? Pretty sure many people have gone whole major versions without changing it...

I change it after every major upgrade, like 3.7 > 3.8.

Then I update it for bugfix releases/PL's when I remember to do so.

Anyway it could automatically update from the latest version downloaded? Or I guess that would not work since this is .org not .com

However, even having the option there I believe would benefit some people. Yes some people would not update but when someone mentioned that their question mentions 3.7.4 however their profile says they are running 3.6.8 then most likely the user would update it.

It was just something I thought would be useful.

The user can download it and not install it ;)

I like this field :D