It's a service built on top of Pinterest, using a confusingly similar log (same color and scripted P), which uses the word "pin" to refer to a piece of content

It's a service built on top of Pinterest, using a confusingly similar log (same color and scripted P), which uses the word "pin" to refer to a piece of content posted on Pinterest. Throw in some confusion of trademarks with "you can't copyright a font" for good measure and you have the perfect regularly scheduled "I'm being screwed by a big company that I won't bother to mention is being totally reasonable" post.