These are good points. A good argument for shorter term timelocks and just rolling into a new one if you want something longer term. 

grayruby

Definitely the you can't sell issue. Maybe by the tune you can the alt fork is worthless.

But for instance the quantum resistant fork proposals all involve migrating all coins to new addresses. Timelocked coins are stuck. Some of the proposals further propose burning coins that don't move.

It's not hard to imagine other scenarios where you need to move your coins and a long timespan timelock could wreck you.

bitcoin

What is the longest you would time lock your coins?

Scoresby

Definitely the you can't sell issue. Maybe by the tune you can the alt fork is worthless. 

But for instance the quantum resistant fork proposals all involve migrating all coins to new addresses. Timelocked coins are stuck. Some of the proposals further propose burning coins that don't move. 

It's not hard to imagine other scenarios where you need to move your coins and a long timespan timelock could wreck you. 