SEATTLE — Hundreds of people packed a Seattle community meeting Wednesday night to oppose a proposal by the city to build a kids playground at a beach park known for decades as a nude hangout, especially for LGBTQ+ folks. People who swim and sunbathe at Denny Blaine Park, and who view the $550,000 plan initiated by an anonymous donor as an attempt to change the way the space on Lake Washington has been used for decades, held signs with messages like “Don’t Displace Historic And Diverse Community,” “Gay Buns Over Shady Funds” and “Save Denny Blaine.” The crowd was so large it spilled into the s…