Update slashing.md

FIP002 - includes the FIP002 slashing exceptions in the Filecoin docs.

Author: robertagora

storage-providers/filecoin-economics/slashing.md

@@ -11,14 +11,16 @@ description: >-
 
 This term encompasses a broad set of penalties which are to be paid by storage providers if they fail to provide sector reliability or decide to voluntarily exit the network. These include:
 
-* **Fault fees** are incurred for each day a storage provider’s sector is offline (fails to submit Proofs-of-Spacetime to the chain). Fault fees continue until the associated wallet is empty and the storage provider is removed from the network. In the case of a faulted sector, there will be an additional sector penalty added immediately following the fault fee.
+* **Fault fees** are incurred for each day a storage provider’s sector is offline (fails to submit Proofs-of-Spacetime to the chain). Fault fees continue until the associated wallet is empty and the storage provider is removed from the network. In the case of a faulted sector, there will be an additional sector penalty added immediately following the fault fee.  Sector fault fees are equal to 3.51 days of expected block rewards.  
 * **Sector penalties** are incurred for a faulted sector that was not declared faulted before a _WindowPoSt_ check occurs. The sector will pay a fault fee after a Sector Penalty once the fault is detected.
 * **Termination fees** are incurred when a sector is voluntarily or involuntarily terminated and is removed from the network.
+* **Consensus fault slashing** is a penalty incurred when committing consensus faults. This penalty is applied to storage providers that have acted maliciously against the network’s consensus functionality.
 
-## Consensus fault slashing
-
-This penalty is incurred when committing consensus faults. This penalty is applied to storage providers that have acted maliciously against the network’s consensus functionality.
-
+## Honest Storage Providers
 
+Note that occasionally, storage providers may experience operational issues, such as downtime or bugs, that cause them to miss their delivery of a WindowPoSt.  To ensure reliability and to encourage smaller miners to join the network, there are built-in exceptions to the fault fees:  
+* If the Storage Provider has a history of acting honestly, there is no penalty in the current proving period for a faulted sector in the case of a missed WindowPoSt.
+* There are no fees if the sector is successfully recovered in a later proving period.
+* The fault fee applies only to the sectors already faulty, meaning, they are from a previous proving period, or marked for recovery.  Penalties are only applied to faulty sectors from previous proving periods, never the current proving period. 
 
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