Shortly after
@SteamedBunInvasion figured-out the vulnerability remaining after skip warnings,
1 it became possible to
block malicious uploaders.
Just go to the
group page, and in the
Group Info box go to the
Actions row, and you'll find a button to block the group.
But be aware that a non-malicious uploader/group might post scans that
fill the gaps but do not include scanlations for the installments that were uploaded by the malicious party. If you see persistent gaps, then you might want to look at the synopsis page while logged-out or after temporarily unblocking the group. (If you block multiple groups, then the option of logging-out will be simpler.)
If someone wants to help other users, then he or she might start a forum thread with an initial entry that is routinely updated, listing groups and users associated with spoiling skips.
In each case links should be provided to the group page, to the user page, and to an example of a spoiling skip of that specific group's work by that specific user.
1 Specifically, the malicious scanner can upload one chapter with a skip, and then chapters immediately after that, and unwary users going from the
Follows page will not get a warning about the original skip.