A lot of users need either to remove the default "Name" and "Email" from the Issue collector or set them as required. Neither of these options are currently available to be configured without customization.
We want to have the possibility of modifying these fields just like any other else, so we can set them as required or remove them in case it's necessary.
The wokaround is stated in the following answer and the following KB's:
- Issue Collector: Can 'Name' and 'Email' be made required fields?
- How to remove "Name" and "Email" from the Issue Collector
- How to set "Name" and "Email" as required fields in the Issue Collector
There is no workaround for JIRA OnDemand.