If you make very short posts, they only accumulate a fraction of a bell rather than full bells.
You can see the posts you receive bells from (and how many bells you earned from them) by clicking here.
By the way, when you click the shop and check how many bells you have, does it have a minus (-) sign before the number?
Not right now, but I seem to recall seeing that before. Why, what does that mean?
Also, I looked at that link again, and there are a few lines where post is crossed out and then says I spent some...what is that about?
Also, I looked at that link again, and there are a few lines where post is crossed out and then says I spent some...what is that about?