In ihrer Untersuchung mit ca. 200 Studierenden stellten Margaret Mazzolini und Sarah Maddison fest, dass allzu mitteilungsfreudige Prof's Online-Diskussionen eher zum Stoppen bringen: "On average, frequent posting by instructors did not lead to more student postings, and the more the instructors posted, the shorter were the lengths of the discussions overall." (Computers & Education
Volume 40, Issue 3, April 2003, Pages 237-253)