I do know how upsetting it can be. I have contacted 2 people through GenesReunited myself and one has ignored me whilst the other did reply to start with and has now decided to ignore me.
On the other hand i contacted one person through genes and we have now a very good relationship and i hope a lasting friendship. This person is a first cousin to me. We get on great and i have shared all the family tree information with her. We telephone each other and have met a few times.
By using rootschat i have also found living relatives in Warrington, St Helen's , London and Qatar (near Saudi Arabia). These people i am in contact with through e-mail only. They have helped me as much as i have helped them.
So to all those who have had a bad time with "rellies" , don't give up! It might take a while but i'm sure you will find someone in your tree eventually who shares "the family tree bug".
And finally, to all those people who do not reply on GenesReunited, you are losing out on some great family historians and possibly some good friends too. I personally think you can never have too many friends.
I hope you have some success happy granny. Will let you know the outcome of those letters.
best wishes
Pauline