The plain vmware tag adds no value as we never get any questions about the company. When it is used it is usually used in error and in place of a product specific tag which would be more useful. This usually leads to people being asked to clarify which product they are using so that the correct answer(s) can be given.

EDIT:

Some stats from the Feb 10 odata release

1648 questions have the vmware or a vmware-* tag. 536 of these don't have the plain vmware tag so they are OK. Of the remaining 1112, 375 have the vmware and vmware-* tags - these could be removed easily by a dev.

This leaves 737 that have a plain vmware tag.

There are 461 with a plain vmware tag which mention ESX(i) in the body.