Hello Krepki and others!
I got also gpaunovic's address.
I was very surprised thet gpaunovic (that http://100stamps.club/profile/gpaunovic) writes on his page:
"Please,don´t send me stamps from European countries after II WW.I am absolutelly not interested in them.If you haven´t any of stamps I am interested,please,send me empty envelope.It is much better than to send me some stamps everybody has. "
It is against the rules of 100 stamps club to send an empty envelope, isn't it. He collects only very old stamps. I have no stamps before WWII!
What to do? Danubius, what is your opinion in this case? Just now I follow Krepki example and don't send him an empty envelope.