Dead Internet Theory: Doorway pages manufacture large numbers of near-identical search targets for slightly different queries, creating the appearance of broad coverage while funneling visitors toward the same destination or service.
Dead Internet Theory: Attackers can turn compromised websites into carriers for unrelated search spam, borrowing the legitimate site's domain reputation while leaving owners and visitors with the damage.
Dead Internet Theory: Programmatic local pages can be useful when they contain real location-specific information, but mass-produced city-and-service combinations become search clutter when only the place name changes.
Dead Internet Theory: An internal search-results page can become an external search destination, sending users from one search engine into another search interface instead of directly to useful information.