Motion to Activate BIP 3

Unfortunately, the provided text does not contain any information that can be used to create a detailed summary or blog post. It appears to be an introduction to a forwarded message regarding a discussion in the Bitcoin Development Mailing List, specifically about a motion to activate BIP 3. To provide a summary or compose a blog post, more details from the original email or the contents of the discussion would be required. This could include specifics about BIP 3, arguments for or against its activation, and any consensus or outcomes from the discussion. Without this information, it's impossible to proceed with creating a summary following the given instructions.