I have a really silly question- what is with the flowers on the stage? I know in Christian churches it is common place for large arrangements on holidays, why don't jw's consider this being part of the 'world' to do the same? or do they always have flowers?
The witness looks at this as a memorial to Christ death and resurrection. Thus the flowers. I seem to recall at all the memorials I have attended they had flowers. As far as being a worldly custom you have a good point but with witness this is always inconsistent.
I have already stated as being in the camp of NO this is counter productive. Comes across as childish and immature. Reminds me of the time the teen idiots followed us from door to door heckling us. All it did was made us look good in the eyes of the house holders and united us in the fact that we were being persecuted for the "truth".