I agree, this Pika hat thing is pretty pointless UNLESS they made them super rare & a collector's item. Have thought this from past hat events, sometimes less is more & flooding the map with them serves little purpose. How many of you would be out hunting them if they spawned at say, shiny rates & for a limited time of only afew days? And thus the excitement in finding one would be real, instead of what we have now, folks upset cos they can't mass transfer them. Keeping things special means more to people, and for an otherwise pretty useless mon, opportunity missed imo. You can get the shiny hat variant so not all bad but like the op says, the rate they are spawning at takes up spaces which could be filled with ralts, etc.
GamePress
Well, thanks Nianitc for ruining this event...
There were plenty of days before the event where they could have brought up that Pikachu thing with a hat of a designer I have absolutely no clue who that is. They are non mass-transferable, take a ton of balls and take away spawn spots for actually valuable pokemon like Eggy, Abra, Slowpoke, Ralts and Beldum.
Im sure Niantic will keep it as with every event before, the first few days the rare rate is quite high and it will get lowered significantly after that. Thus, even if its just for 2 days, that Pikachu bullshit just ruins it completely. What a waste...