I would say that the email addy you register with is fairly safe here. If you are really worried about spammers picking it up, just make sure you set the option of other members to send you email to 'No'.
The biggest risk is posting your email in a public forum like this, which crawlers will find and use. If you ever wnat to provide your email in a public forum, mask it so crawlers won't find it, like
myname at my isp dot com, or something similar.
But the folks who run these forums are pretty trustworthy, IMO, and your email addy isn't gonna be sold or otherwise made publicly available by them.
IMO, anyhow.
Cheers
Mick