Flaky conferences can taken advantage of your time, money and energy. My own publications in bona fide journals have triggered an onslaught of emails from probably predatory conferences–World Congresses of this and that (global health, nursing, education, etc.). The cartoon below totally resonates! Thanks PHD Comics.
http://phdcomics.com/comics.php?f=1704
Discovering Your Inner Scientist 
This might be of interest, too: http://flakyc.blogspot.com/2019/04/conferences-from-unnamed-organizer-in.html
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