It seems that the thread you are referring to is this one: http://forum.nim-lang.org/t/1569 (the forum profile view really needs a listing of the person's threads/posts).

From looking at the thread, it seems that this is a simple case of your thread becoming lost in the noise of the forum. Please don't feel that you were ignored on purpose. I think that Araq simply forgot to reply to you, it's easy for threads to get lost like this.

It really sucks, but the fact is that Araq doesn't have enough time to answer everyone and in this case he is the only one who could have assisted you.

In all honesty I think this is quite common in forums. I'm not sure how we can improve it, short of getting full-time Nim devs who ensure that everyone on the forum gets a response. What do you think?