It's nice to have a name for this shit. It's driven me mad for years.
Anyway, deceptive and manipulative layouts, phrasings and processes in selling shit to you that you really didn't want online.
Probably old hat to a lot of you, but I think everyone should be armed with knowledge about it so these cunts pack it in when everyone knows about it and hates it, so have a watch and a read and pass it on
Dark Patterns - User Interfaces Designed to Trick People