At the time, I think it was literally one per pageload to get the balance of an address, and it occurred on about the third refresh in 20 seconds (I had recently updated the file and was waiting for it to propagate to my hosting service). I think the maximum it could have been was 5 API calls per pageload, but it only caused an error on one.
Currently the minimum amount of requests on a pageload is 5, with a max of about 10 if a lot of stuff goes wrong, and if I remember correctly I've only seen the error once more, and pretty close in time to when i saw the original one.

I do a lot of calls in a short period of time to manually test things, but it's still a relatively infrequent thing, and I usually only do about 4 pageloads before i see the next bug to work on.
There is only one point in my program that this could cause an error (when i'm using the balance of an address for some math), so I should be able to catch that and abort gracefully if this shows up again, but I get that other people's implementations may be less flexible and have a lot more riding on them.

I mostly use blockchain API because I'm not hosting anything myself, and I don't want to have a lot of setup time to install daemons if I have to change hosts.
Before starting real web development with bitcoin I would have never thought that paying for enterprise-level garauntees for a reliable API was worth it, but now giving a portion of any income to blockchain for garaunteed uptime doesn't sound so bad.

I just got this error today, but only once. I can refresh my page and not get any errors anymore.
I also applied for an API code once I saw that I had gotten an error, but I haven't even gotten a reply email yet and everything seems to be working fine.

'I want to link my Bitcointalk name with BTCJam's. Verification code: 91b64595-f110-4e76-80ff-7522be8b4b51'

this is an interesting idea...

as i see it, any miners working on this new system would not use any advanced features, making them still valid bitcoin blocks, just without any special transfers included in the block.
optionally, all bitcoins before block X will be valid paracoins, but after that any block that used advanced signatures is invalid.

the problem is that even if bitcoin blocks that used advanced features were allowed to exist in a chain, any new transfers that used advanced features would basically be in purgatory until a normal bitcoin miner manages to find a block.
if blocks with multi-sig transfers and whatnot aren't allowed, that would probably cut the blockchain down a whole lot, meaning the new chain wouldn't be accepted at all because it's so short, but that might be made up for by lower memory requirements and lower block sizes, which should increase hash power just from the fact that you don't have to look at as much data to start hashing.


has any progress actually been made? as far as i can see, all it would take is an older version of the client; it wouldn't know what the new transactions meant and would ignore them, and as long as it's a version new enough to have valid blocks they'll be accepted if the chain gets long enough.

not sure if i'm too late, but

much facebook
many twitter
all doge:
DL6zuLLquK7bmVRgUm3KPAzSJWAQvY76WN

my two cents:

1: people have been "told it all their life". i'm going to use the word indoctrinated in this somewhere, so it might as well be here.
aside from pure indoctrination, there's the simple lack of a second opinion: people don't know that it's possible to NOT follow the law. i barely even see police officers, and i've been exposed to things like anarchism, so the law is a more abstract concept to me, but there are some people who think it's just how the world works: "you do thing A, police show up and take you to court B and jail cell C" and they're thinking "yep, always been that way, always will be that way". they make it an inherent quality of the world and proceed to
2: people have nothing else to cling to. if someone doesn't feel there's any rhyme or reason to the world, they can cop out and say "the government will tell me how to act! then everything will have meaning again!"

3: fear of the most terrifying bugaboo of the day: the dreaded [communist | anarchist | socialist | nazi | terrorist | criminal | insane person | anyone who is waving a gun in my general direction but doesn't have a little flag stitched to their military garb, because that makes it alright to have a gun to point at me]
the problem i have with these people is that if everyone is so terrifying, especially if people are "naturally [greedy | violent | ignorant | made it their life goal to kill me, specifically]", how could you possibly trust a person you haven't met from across a 3,000-4,000 Km country? having common heritage obviously doesn't work forever, since we're all the same species, so what could it be? is it that we all watch the same TV, because if so why aren't we moving TVs out ASAP? is it that the [desert | tundra | <whatever china is considered>] makes them naturally hate you, in which case why don't we just nuke them and get it over with? the only thing that isn't a quick answer like that is that everyone in the military is afraid of everyone else in the military, in which case they should just talk it out and create a dictatorship or something, or a mercenary who joined up with the largest and best paying group!
the most baffling thing is that apparently the army makes you swear an oath to the constitution, so either everyone in the military are blatantly lying about loyalty, or people can actually believe in ideologies, and if people can have opinions, the only enemy is irrationality because everyone else can either be proven wrong or shown that we don't know how do decide.

much interest in faucet site...

seriously though, i'm pretty darn good at windows command line if you need anything and can understand basic HTML, even if it takes me forever to create it.
i've been interested in making a server for fun and learning, so hit me up, doge! do note that i have no experience with servers and despise anything that has a (mandatory) gui...

many facebook
much twitter
such coins!
DL6zuLLquK7bmVRgUm3KPAzSJWAQvY76WN

Looking at what others posted, it occurred to me that i have a super-special skill to offer (besides my sense of humor): technical computer knowledge. I know that probably isn't in any scarcity, but specifically I've spent at least a year (almost) mastering the windows command line. For loops and variable management are harder than you'd think.
I'm even studying computer science at college and know some of C++ and java, with about 2-3 years of C++ and a class on java (it's the same as C anyway except pointers aren't explicit and you can use reflection).

Additionally:
I know the basics on how to use HTML and XML, though that doesn't come up often and I don't really know how to implement HTML in webpages. Again, i know the basics like how to use head, title, body, p, img, and ect, but i'd have to look up every attribute individually and have very little idea about how to use CSS.
I've researched some about how IP (the internet protocol) works and am thinking of implementing DHT/decentralized communication in a MUD as a replacement for a server.
I've played around in VBS and have done small things with it, but it disgusts me yet seems clean and structured at the same time and has a befuddling amount of setup required to do something as simple as file manipulation.

Not sure if this counts, but I've been around bitcoin for at least a year (i'm not that good with time) but i'm certain i discovered it before 2013, which puts at least 11 months on my clock. I have't actually been logged in to bitcointalk, but i did spend some time viewing the forums (especially because they're the main source of information on bitcoin). I've read the white paper for bitcoin, PPcoin, mined casually with GUIminer and am finally getting into command line stuff. I even earned enough to trade on BTC-e once, but i blew it all on chinacoin speculation; i'm not sure what that does to my reputation though
Also i was around for pretty much the entirety of chinacoin, and probably disconnected for a while because of my losses, if that can give you a better idea of my timeline.

Also, there's a dogecoin giveaway, and it's actually my first coin i've used a QT client for. 

I'm not putting much importance on whether i get bumped, but if i do it'll make me happy.  hopefully this will count as my one post anyway.