A group of local SEO experts are saying in the Local Search Forums that the Google Posts traffic has significantly declined over the past month or so. This specifically happened when Google moved the Google Posts to the bottom of the knowledge panel around October 1st.
Jow Hawkins wrote:
I am a huge fan of Google Posts but lately we have found that since Google moved them to the bottom of the Knowledge Panel we are seeing clicks on them decrease a lot. For example, this is an attorney we have been doing posts for since September. You can see the trending decline in clicks from the GMB Posts to his website.
All the other local SEO experts saw the same pattern - a decline in traffic from Google Posts.
Diogo Ordacowski shared this graph of a clients Google Analytics traffic from Google Posts:
Are you noticing a decline in your traffic from Google Posts?
Forum discussion at Local Search Forums.