ScrapeBox can be used to find and filter some of the highest quality links possible. You can classify pages by metrics such as:
Domain PageRank
URL PageRank
Alexa Rank
MozRank
Domain Authority
Page Authority
FaceBook Likes
Google +1 count
Twitter Mentions
Pinterest Pins
LinkedIn Shares
Malware Filter
By country of server IP
Page Dead or Alive
Outbound Link Count
Internal Link Count
Google last cache date
If url contains specific keywords
If url does not contain specific keywords
If page contains bad words
So if you only want to leave comments on pages with a PageRank more than PR5, that have an outbound link count of less than 20, which contains no bad words, plus it has more than 1,000 FaceBook likes and and overall Alexa rank lower than 10,000 with ScrapeBox you can scrape a raw URL list based on keywords and filter it down to only sites and pages matching that criteria. You can also create relevant on topic comments on these pages with the manual poster
https://www.youtube.com/watch?v=jtUotlkVnas instead of mass blasting with the fast poster, or find guest posting opportunities etc the possibilities are endless.
There's tons of ways to utilize ScrapeBox either by itself, or as a part of the overall link building process for Tier 1 sites. ScrapeBox is used extensively by some of the biggest names and companies in the SEO/Marketing/Inbound industry in their day to day operations for link acquisition.
But some people have no idea and think using ScrapeBox involves loading a random 10 million list and clicking blast simply because it's what's easiest and there's zero thought required. I don't recommend you use it like that, especially for T1's there's far better ways it can help you.