Short desc was not mean to add HTML, but support it.
You can add a little script to add a light editor, it's not right to add plenty of code in the short desc, so you should restrict it.
Yes I could, but you know that the customer's will is the first, so if they want to use HTML I have to provide some solution.
"Short desc was not mean to add HTML, but support it." so if it's support it why is it is a problem if they want to use an editor for that? I know the field is varchar(2000), but it's also insteresting, why not varchar(1000) or varchar(2500)? Or text? Of course there are performance reasons but in this case they don't care the performance (~20 products) but need html tags. It's about flexibility for me.
I can solve it, there's no technical problem for me, it's only about the structure, flexibility and the possibility to create a proper setup for the customer's needs without hacks and custom fields and third party extensions.

Without doubt I like VirtueMart and this is why I try to help with providing the issues which I receive from the customers.