Okay, so, I will give you an example of the issue.
1. I visit Site.com
2. Site.com is fine, but some portion of it attempts to make a connection to badsite.com, (automatically blocked by MWAB)
3. I use site.com frequently, or, alternatively, a legitimate program on my PC attempts to access an IP that's blacklisted by MWAB (such as a video game with Peer to Peer networking)
4. I receive a nuisance ping every single time
Suggested alternative: Add a "Do not notify me when blocking access to [Domain] in the future" tickbox to the prompt that appears when blocking a domain, it will still appear in the logs if you open the app fully and check, so you can unblock it or what have you.