Hi deadparrot,
Thank you for your question.
No, it doesn't work that way. If too many links too fast was a problem,
all xrumer services would be out of business overnight, instead, those
that make clever use of
longtail keywords are reporting very good success!
In fact, I know more than a few guys in adult, pharma, etc that do nothing
else, they depend on this type of link cuz no one really wants to link to
them.
A lot of links fast means "going viral", not sandbox. Google will think that
everyone is talking about you; that you are the "latest thing".
Let me know,
Bompa