well im stuck in the middle so ill give you to reasons
why i think they shouldnt be able to:
cuz they might wanna open it just as a scam and might try scamming and/or harming others
why i think they should be able to:
if they have a great idea and can prove its not a scam then im all for it ppl should be able to share and give their idea's to the world no matter howw far fetched they may seem
also ur question requiers an opinion so it should be what YOU think not just what others think :) in this type of question it would be best to go with ur own answer cuz there is no right or wrong anyways have a nice day :)