Draftool is maintained by MVPenha. It is one person's work: the rankings, the scoring adjustment and every note on the board are written by hand, every week.
Almost all the good fantasy football material is in English. Someone starting out in Brazil shows up on draft day with a generic list downloaded off the internet, not knowing it was built for a different scoring format than the one their league uses.
Draftool started to fix that, and grew into the rest of the season — because no league is won at the draft alone.
The list is reviewed on Tuesdays. An automatic collector runs twice a week and points out what changed; reading what that means is still written by hand, and it always comes separated and labeled. You always know what someone put their name on.
The whole methodology is out in the open at how it works.
Question, a mistake on the board or disagreement with a ranking: use the account area to get in touch. Reply within 2 dias uteis.
A mistake on the board is the most useful message there is. If a player is on the wrong team or a note has gone stale, say so — the list gets better from it.