You know... I'm not an investor but if I was and someone pitched me by saying "Hey, want to give me 25k" without any other information I'd dismiss them out of hand too.
Note that his profile has no clue as to what I would actually be investing in.
I just wanted to minimise the spam as much as possible and politely ask if he'd consider it in principle first. My profile links to my resume etc which might be enough to warrant a 5 min chat to get the pitch, and who knows from there. You miss 100% of the shots you don't take :-)