i have mine on the carpet and have had NO issues. some people are paranoid, some just dont care (gives me reasons to upgrade to better parts IF something does happen, which nothing has yet).
I think it is more...that some people are just lucky!!
actually it really depends on location (geographic) type of carpet and believe it or not ..body chemistry.
While electrical discharge can happen at any place and any time< it is more apt to happen in colder climates and
/or higher altitudes and when in contact with man made materials(non natural fibers) that break the natural grounding effect.
Wool carpeting does not produce a ststic discharge but nylon will nail you. And I know people that have so much built up static charges in them that they cannot wear any watches at all. If it was battery powered it, they blow the batteries and if wind-up the back of the watch corrodes where contacting the skin.
But back on track ... raise it up on books, boards, what ever and you probably will be ok...
The issue should be ...do you really want to take the chance of blowing it up?