There's [a user](https://stackoverflow.com/users/4809988/roman-koellges) who is providing support for their product when it shows up on Stack Overflow questions. They are very upfront about their affiliation and seem to be generally helpful, but the format of their answers is always something like this:

> 
> Roman from Tower here, hi.   
> 
>  /\* Something \*/   
> 
>  If you need more assistance, please contact us: <http://bit.ly/towersupport>
> 
> 
> 

I don't think the first and last lines add anything of value. But I came across [a question](https://stackoverflow.com/a/32268630/1366033) where even the middle part was just a plea to take the diagnosis offline with the user.

I don't want to discourage companies from providing support on their own products, but this can't be done here on a user-by-user The support URL could, at best, get added to the tag if they are really committed to handling every case that comes their way.