By not following-up, you show yourself to be unreliable and untrustworthy.
If, as most networkers accept, relationships are built on a foundation of Knowing, Liking and Trusting, then we fundamentally undermine the ‘like’ and the ‘trust’ by failing to call.
All that happens is that your prospect thinks you are unreliable.
‘If that’s how reliable you are at the very start of a relationship, how bad might you turn out to be when I become a client ?’
They’ll also think you are untrustworthy:
‘He/she said he would call/send me some information on…/facilitate a meeting with…/introduce me to…’
It’s rude. They’ll think you don’t want their business and …
That’s bad for business!