Reporting Spam_How to know if will result in more

I recently started getting a LOT more spam on my "master" email acct I never use.
Discovered some seemingly confused advertisers like Peoria VW, (for instance) think I live in places like Peoria (live 1000 mi away).

Don't report a lot of spam - do scams / fraud if can tie to a well known ISP.

Reading message source, one ad included link:

You recently registered with a network website to receive special online offers.
To no longer receive messages, please use this link to remove your subscription
(which gave link below):

hxxp://egroupconsumer.com/webforms/egroupconsumer/?lid=14691&mid=nnnnn&email=xxxxxxxx@xxxxxxxx.NET (I removed real email).

Obviously, didn't register for this site. The site exists (didn't click link), but not much info or even link to report abuse. Of course, # 1 rule of security is don't click email links from unknown/ untrusted sources. BUT... if I reported many spam msgs, I'd be forced to send my email address to unknown ISPs, because I haven't heard of most.

That may result in more spam, not less. Or if I sent them to say, SpamCop or other, they might be sending my address to unknown sources - same issue. How do others handle reporting spam (or not) if it's NOT from an ISP like AT&T, Google, Yahoo, etc? Just del & forget?

Thanks.