I would like to know how many files can be placed in my Dropbox a day via IFTTT. What is this limit? Can I change it? I'm a beginner in JavaScript, so Python is preferable if there is a programmatic way to change the limit.
The Dropbox API does have a general rate limiting system, but we don't have any specific numbers documented, nor are the limits something you can change. Dropbox API is designed to return explicit rate limit responses that API apps can catch to handle programmatically.
Note that the third party app/service, in this case IFTTT, may also impose its own limits, but Dropbox can't offer insight on what those may be, as that's not made by Dropbox.