[krallistic]

If claims to have good knowledge in TS, but had not played around with Prophet (which is dead simple, takes a few hours - or 15 minutes for you - to see some problems), how interested/knowledgeable are they in TS? (I assume that they look for candidates knowledgeable in that field, and just playing around with prophet dosnt make you knowledgeable)

Especially in TS is saw many PhDs, really focussed on one specific method, not looking left and right and neither are pragmatic about their choices. Which is essential to solve anything in real life. Filtering candidates out, based on criteria like "played around with different stuff" is a good indicator for open-minded people IMHO.