User blog comment:Wassboss/DEATH BY EDIT/@comment-25242759-20160801061000/@comment-3189283-20160801075614

Because you have 3 Sanboxes and 2 Contruction Sites filled with reserved battles, numbering in the hundreds. That's far too much for any one person to do within the year that reservations last for.

You can still do any battles you've planned out in your Sandbox/Construction Site when you get round to them if they have not been claimed by another user but reserving battles that likely won't be done for years to come is frankly ludicrous.