Bulk import/export and even bulk deleting data is tiresome and painful – With cases of “wait, why didn’t it delete everything… crap, it stopped at 1000” You will run into limitations - One off the top of my head, in regards to big data, is you have to use lots more slow backend workflows in Bubble to iterate… and getting consistent results (“hey it’s adding this, then modifying this, and doing this every time for 1500 entries!”) at scale has been an issue for many power users. Not to mention there are data consistency issues at scale and big data in Bubble is unwieldy to work with unless you are using 3rd party database solutions (no personal experience though). Bubble right now throws a message “please refresh” – So if you have a ton of people on a page performing functions, I can imagine there will be quite a few “Hey, I was in the middle of something”. I shudder to think about having to make updates to a live application when 10,000 people are online. If you have that many people signing up and that many users, you should have the funding to do something with custom code with more control over performance and your server. As a power Bubble user of 5 years, I would say no.