Yes, I think Bitcointalk.org is a friendly place and it won't be any issue for me to tell my friends and family members about it. But, I would share about this place with those people who consider Bitcoin seriously without doubting about it.

I often avoid suggesting anyone in offline world about my online activities, but I always recommended Bitcointalk.org to all those members of my family and some close friends.

But, to be honest, none of them joined this forum because I told them about the forum not about the signature campaigns and earnings from those campaigns.

I guess the ones who consider Bitcoin seriously would join the forum without any questions but those who are just curious may not give it proper attention. I must say that I haven't told any of my friends about my Username, but told them about the forum in general.