Support for #1 and 2. It's say too much of a chore to search through individual pages of auctions.
#3 I don't think I could see happening. It has been said many times that there will be no plans to implement a direct name search. Some users really dislike people constantly rmailing them for names to sell so I don't think it would be a good idea.
#5 I have no opinion on. I personally dont see a need for it.
#6, Absolutely no support. First of all,we have very few pets and items in the game that are of really high value and personally I wish we had more really rare items to chase after as it could create more goals for users to work towards. Secondly, I paid 400mil for my regression ray. Some people have paid significantly higher. They do still occasionally sell. They also provide a small living for those who have invested in one who sell zaps. It is one thing to devalue a pet, like how the bioscan event at one point reduced the price of an ivik to an all time low of 25mil. It is another thing in entirely to implement something that would stop some users making sufficient tu from zaps.
#7 I would be interested in how this could be reworked into gameplay so wold support.
#8 easily support this. With the never ending 20 year expire date all this results in is people clogging up the auctions as storage space or for merchants to use the actions with it's buy now function like their own rancher shop.
#9 I could support something like this. Like a message saying,you can pick up X number of eggs written in the hatchery or if you hit your limit a message like "you can collect eggs again in 4 hours and 5 minutes"
#10 kinda support though think that's what gets done anyway when new items are added or old ones are revamped sometimes