Three potential explanations:
1) A SPAM attack to promote a rushed need for a hard fork (hint: there is none).
2) A means of transferring/storing some sort of data.
3) Other *usage* of the chain (e.g. There was something about the Komodo federation not long ago, where they essentially spammed us with thousands of transactions).
Some of the transactions are already got confirmations so they are not fake transactions, that's for sure.
What are "fake transactions" in this context?