Manually add a folder, depth limit

Help Coding
1

If I were to add folders that already exist on IPFS to a new IPFS file and do this every X minute. How would pinning the top level item look like? If I were to run this for a year would that mean I just have a very very very deep folder structure or is there some inherit limit to this?

I am asking because I want to do this. I would prefer to directly use the folder but otherwise I will include the IPFS hash inside a file instead. Decoupling the linking from IPFS itself.

2

Pinning would mean fetching and storing the full DAG (folder tree), regardless of how deep it is. There are no inherent limits.

3

So it is probably better to not do this then? As it would likely create humongous trees.