Doesn't have to be black or white. You can have a much easier challenge for regular visitors if you block the only (and giant) party that has implemented a solver so far. We can work on both fronts at once...

▲

1gn15 5 days ago | parent [-]

The point is that it isn't "implementing a solver", it's just using a browser and waiting a few seconds.

	▲	Aachen 4 days ago \| parent [-]
		That counts as something that can solve it, yes. Apparently there's now exactly one party in the world that does that (among the annoying scrapers that this mechanism targets). So until there are more...