Comments with the string "TODO" are not recognized as Task in the Tasks windows.
This feature doesn't work in NetBeans 6.8, too.
Not sure it is still relevant with the current version. Closing this as old bug. If this is still a thing, please reopen and accept my apologies.
Thanks for your evaluation Julien. Reporter, if you think your issue is still valid and needs to be addressed, don't hesitate to reopen it with additional information. Closing for now.