 You should only grant access to people who you trust. By granting someone basic access, you are giving them the right to seize control of the observatory and acquire single images. If you give them permission to upload things, they can upload observing plans and do long automated runs, acquiring many images. If you give them permission to upload and to execute scripts, they can do anything, including erasing your hard drive. 
For details on account permissions, see Web Account Privileges.
 You should only grant access to people who you trust. By granting someone basic access, you are giving them the right to seize control of the observatory and acquire single images. If you give them permission to upload things, they can upload observing plans and do long automated runs, acquiring many images. If you give them permission to upload and to execute scripts, they can do anything, including erasing your hard drive. 
For details on account permissions, see Web Account Privileges.
Moral: give accounts and permissions only to those you trust, and do not give "run scripts" permissions to anyone but yourself and your most trusted users!