I disagree. I think that is a fine example of a possible pump and dump especially considering the source - Sierra, but thank you for posting it. I hadn't read that one.
Personally - I think a key word can be found in the title:
Diana Shipping (DSX) To Buyout Excel Maritime Carriers (EXM) In March 2013 Ventures Sierra World Equity Review.
I venture to guess she/he (Sierra) is incorrect... although it wouldn't be the first time a drybulk shipper has bought another drybulk shipper.
The full piece, short as it may be, can be read here: