text: First, the definition on the wiki is fine. It's your definition that's issue. Although the meaning of a playground isn't implicitly stated in the wiki it shouldn't have to be because there is an implied to the word "playground" that is obvious. The purpose of the wiki is to define tagging, not be a dictionary for the description of terms that have widely accepted meanings. In this case, its pretty widely accepted that a playground is something on the ground, where kids play, that has equipment for it. Which this clearly doesn't fit. I could pretty easily get into a semantic argument with you about the meaning of "ground" (which water isn't) and "play" (which surfing is questionably playing) but I won't. I think the meaning of the word for the tag is more important to what the particulars of the wiki says at any one time though and in this case, its more about what the wiki doesn't say then what it does. 
  
  Again, I'll state what I did before just because kids use it doesn't mean its a playground. Anymore then the specific spot on the rock climbing wall at my local gym is a playground or any other things that are accessed by children. Again, it's an access thing, not something that determines tagging. Also, some playgrounds are accessed by adults. So if you use your logic of this being a playground and a surfing area, then all surfing areas are potentially also playground. Which is clearly none sense and negates the purpose of the tags. 
  
  I've already stated which parks plenty of times, the beaches that you wrongly think are parks. There's plenty of examples around here. 
  
  As far as you living there, 1. Your subjective experience doesn't determine how things are tagged. Anymore then I can tag my house as a castle just because I live here and feel like it. 2. There's an implied verifiability to things mapped in OSM. If I do map my house as castle and then another mapper comes along and wants evidence that its actually a castle, I can't just say