Which 1v1 maps are garbage and should disappear or be redesigned in your opinion ?
https://www.strawpoll.me/17717170
It will be self evident which 1v1 maps are "garbage" once SiphonX's data is released.
Redesigning can be a tricky endeavor. If a maps fundamentals are reasonable then it is generally worth it to change a map or overhaul it. If the fundamentals are weak and the data shows they are "garbage" they should be dropped from the 1v1 ladder. A mappers experience and insights will be valuable here.
Whoever decides which maps are dropped from ladder, if any, will need to determine what their metrics are for that action. I do think there is room for maps to be removed from the 1v1 ladder and replaced with higher quality maps.