[unshift]

many employers request that employees provide a disclosure when discussing their products on social media

[TheIronYuppie]

We don't, but generally do it out of an abundance of caution.

(disclosure: I work with the above two)

[morgo]

I think it's a pretty good policy.

Fake reviews/astroturfing comments can hurt a brand quite severely. The riskiest situation of course is talking about a competitor's product (which we kind of are here).

It doesn't have to sound like a legal disclaimer, but its nice to identify your relationship to the product may have (even subconscious) bias.