Nowadays many scientists are lost in their publication strategy, they have solicitations (to publish articles, to support the peer review process, to lead special issues) from plenty of publishers, however, are they reliable? How to know? In this context, it is more and more difficult to identify predatory publishers and unscrupulous actors motivated by profit rather than advancing scientific knowledge. We also notice an emerging and very nuanced "grey area“, with controversial publishers and ambiguous editorial practices, which increases the doubt. This presentation zooms in on two of them, analyses their strategies and underlines the limits of scholarly publishing.