There have been a number of questions from mostly new members about being flagged as spammers. It may be useful to create an explanation page which users can look at to get clarification about these issues and which could be linked to when answering their questions.
"The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts." - Bertrand Russell
It only seems to be happening in this forum for me: Chrome 56.0.2924.59 beta (64-bit). It is present when I first come to the forum, but then it disappears on scrolling down. And sometimes re-appears when scrolling back to the top.