I've been making a SADX guide with everything from basic walkthroughs
to missions to time-attacking, and I'm giving away some secrets.
There are enough to make the A Missions really easy
(and to make beginning players decent time-attackers), but I'm keeping
a few to myself, at least for now. (Sonic Windy Valley, Amy Hot Shelter)
Anyway, anyone who wants to give away their secrets for the SA2 guide can,
and anyone who wants them to stay secret can keep them that way.
And, yeah, really super-good guides and videos can make people say "Man, he's good!"
Another thing: If you don't want to give your best tricks, you can give second-best strategies to replace those sections.