I'm pretty sure I'm just going to delete all my costumed Pokemon because I don't see the point anymore. If they'd kept releasing one or two a month I probably wouldn't have noticed as I gradually caught each one but when they go way overboard and release 10+ at once, it becomes so much more obvious that trying to collect them is a waste of time, effort and storage space. And I say this as someone who had a living dex on the 3DS that included all the different Vivillon patterns, different sized Pumpkaboo/Gourgeist and so on.
And as for raid timing, I'm perfectly happy with the current setup which seems to be 3 weeks for new legendaries and 4 weeks for new shiny legendaries, with some raid weekends and days added in to mix things up (though two raid days in three weeks is absurd). It gives people plenty of time to get the raid boss and plenty of downtime if you get in early, which you can use to try and go for the hundo, raid T1-4 bosses or just take a break from the game. The last thing I want is for them to release a new T5 every week or even every two weeks and feel like I have to dedicate even more time to this game.