I spent 10 days in the Cyclades in October and didn't see a single migrant.
The reality is they arrive on islands such as Lesbos close to Turkey and transit through Athens on their way to Northern Europe.
To suggest the migrant crisis is a reason for not visiting the Greek islands is nonsense.
Likewise the suggestion of a poster about day-tripping to Rhodes from Athens.What's the point ?

Here's a good guide to those island affected.
http://www.telegraph.co.uk/travel/de...refugee-crisis