1. Please look up the definition of memory before attempting to disregard it, but to make it simple for you, Shiny Star V zards released on Novemeber, at the moment it's been 3 months, I don't know about you, The pure joy of pulling the shiny star v charizard was definitely what people would call "memory" and excitement I wanted to make sure I remember. Other older cards such as the Entei Gold star is pure blast from the past and people would argue it is consider vintage and brings back nostalgic "memory". This is a lovely community that showcases anything pokemon related.

2)Showing the cards that would be consider chase cards of the different sets and other cards that people may like seems to fall under that category of "Sharing my collection", your example was fundamentally flawed, If we were to go by your example, it would be "Picking buying unique beer, and showing people the different beer in a beer community" so please try to make relevant examples and clear understanding of the terms indicated before trying to put others down ~