"Claim" sub-heading in the CLAIM section of the distribution contract could be labeled "fee" for better clarity.

[jabo38]

Basically if you go to the Distribution Contract here. https://etherscan.io/address/0x47176B2Af9885dC6C4575d4eFd63895f7Aaa4790#writeProxyContract

The go to "Write as Proxy" the third section is for claiming MOR tokens. It then says the "payableAmount (Ether)" but as far as I know this section is actually for the fee you want to pay to claim. No matter what you enter, the contract claims the entire amount of MOR.

It is not impossible that somebody who doesn't read documentation well might stick a really high amount that they want to claim and then end up paying a really high gas fee they weren't expecting.