https://support.google.com/plus/answer/6020454?p=restricted_profile&hl=en-GB&rd=1 and
Special conditions for regulated goods and services
You can’t use Google+ to facilitate the sale of regulated goods like alcohol or tobacco. If you do, Google may remove the offending content or suspend your account.
FFS, Google! I've done this many times before and have probably posted 20 or 30 "Friday Night Cocktails". The only difference this time is that I added some links to the manufacturers. Is that the problem? Linking to
Anyway, I've changed my audience settings to 18+ FWIW. But maybe I'd still be breaking the laws of Google Land.
[edited to add]
I posted a similar post with the same links but with different text to the Mixology community and that's disappeared. I've reached out to the owner to see if I've upset them and it was removed by an Admin. Which makes me wonder if this was more a spam algorithm I've triggered rather than an alcohol related one.
Along the way I've also discovered that I can restrict my posts so that they are invisible to people in the USA. I might just do that!
[further edited] Here's some text.
Dear Julian Bond,
We've determined that your posts may be in violation of our User Content and Conduct Policy.
Facilitating the sale of regulated goods or services, or promoting
regulated goods and services to inappropriate audiences, is not
permitted.
Continued violation of our policies can lead to the loss of your ability
to use some or all features of Google+ and other Google services.
Please review our policies to avoid violating them in the future.
Yours sincerely,
The Google+ Team
And changes to restrictions only affect new posts not older posts, like this one.
https://plus.google.com/s/julian%20bond%20cocktail