No support for a "buy all" for the reasons already mentioned.
I could maybe see something like a "buy 10" button being okay. It could still give people a big advantage for things like RB and when things like Genetech combos or other features requiring specific items come out, but at least other users would still have a chance. But I also think the wait time should be longer in that case for the buy 10 button
I agree there, which is why if this were to ever be implemented. The Recycle Beast, a simple line of code can prevent the button from showing up for the said daily round of items. I would imagine, even with other types of items like genetech combos. Although I think the latter it might be easy to spot the genetech combo that way but would require users to go through thousands of items to find those that don't have a buy XXX option.

What stops me is what stops everyone, there's a delay in between purchases. Because of that delay, it takes work and endurance to corner the market. I personally detest the non-consensual way that kisses=currency during Survival, forced sex-work doesn't amuse me all that much. It took me nearly the entire holiday to buy from other users all the Candy Hearts I needed.
What also stops nearly everyone about items being super inflated is that the site can and will dump new copies of the item into circulation if it pleases. We are not promised "value" on our virtual items that we have license to use here. However, implementing this Suggestion would involve the rather small staff of Subeta to be super active thwarting all the arbs instead of only occasionally doing so. I personally would rather they be doing pretty much anything else.
I don't agree with excluding any items from having a button either tbh. Either every item should have it or no items should have it.
With "buy 10" being the only additional option and an increased wait between purchases, I don't think it would make a super significant difference for time-sensitive buying to the point that certain items would need to be excluded, but it DOES seem like the kind of thing that would increase the chance of something breaking and that's. really, REALLY not something anyone wants happening on the shop search pages
I do understand where you're coming from not everyone wants to invest the time in doing that but my point is if that is stopping you now, what honestly makes me think a buy simple 5 is going to change that mindset. I spent hours buying buying upwards to 30,000 carved pumpkins years ago, and came back to a being able to frag them. Which I was going to use them for the recycle beast but that turned out differently.
Good point, yea i think that is probably the best idea to be honest. I agree with an increased wait time :)

Yeah, the more stuff is automated, the less headaches it's going to cause for everyone involved. :'D Imagine if something that has really high demand was dropped into the Crystal Shop (like the Universal Remote), but they forgot to tick off the "disable bulk buy" option for humming power crystals. You can bet that the crystals would shoot up in price like nobody's business!
A "buy 10" button could be nice though! brings up a good point with there being a bigger cooldown on purchases if you buy 10. A cooldown of 30 seconds-ish seems decent? Yeah, cooldown is 1 second between individual item buys, but considering the lack of clicking you'd be doing, it would give other users a chance too, so I think it might work out.
Hm, as handy as it might be, I don't support the ability to buy in bulk or in stacks from user shops. Like said, if the ability to buy in bulk needs to be regulated, forgetting to adjust it once can lead to pricing problems.
I also feel that there might be issues with server conflicts--for example, if a shop has 20 tokens in it, and a few users choose to buy differently-sized stacks at the same time (which is more likely to happen with recycling beast items), how will the server choose to prioritize who gets their stack? Will the person who bought a stack of 15 tokens get an error because someone else bought a stack of 10 a microsecond faster? Or would the shop spit out the biggest stack first? I'd imagine it'd lead to users making guesswork about how many items are left in the shop, which just seems inconvenient.
@ Marcus That's also a very good point. :/ If I remember right, something similar was the reason behind the auctions being very flaky about final bids and ending time. Something about the cron being very very slightly off across the servers resulted in auctions being pretty unreliable - you had a good chance of getting sniped even if yours was the final bid and you saw the "auction closed!" message.
I forgot that auctions existed, but yeah--if the cron is off across multiple servers, then I think being able to buy stacks of items is just going to make things unfair for users, since nobody has the exact same time to the microsecond. (And even singular items, for that matter, but buying up 1 of a recyclable item at a time is less meaningful than buying 10 or 15 at a time.)