scrapers are pretty intelligent. I think this would be easy for the to figure out. They'd just make a rule that searches for @ signs and take x words before it, and x words after it, and create a few email addresses out of educated combinations. They don't care if 90% of the email addresses they generate are bogus.

basically, what you need to do is think of a scheme thats original, hard for a program to parse, but easy for a human. doing the same thing as everyone else does will not work, if everybody started adopting the same email obfuscation rule (i.e. everyone did "myemail_at_NOSPAM_ezabel_com") the scraper programs would just incorporate a rule to check for that format.