[Paul Stenning]

The more emails a website sends, the more likely that IP is to get flagged as a spammer. I have tried to set it to send the emails needed or requested only, within the options available.

The whole point of subscribing to threads is to alert you that there has been activity and to invite you back to view it, not so you can monitor the whole thread by email notifications.

There are some systems when it is useful and reassuring to have an email for every login or change, mainly things where I would never expect anyone else to log into my account and need to know if they do (such as web hosting admin panels).