When I am typing in NetBeans 8.2, whether it is a HTML paragraph or something like an input field, this annoying auto-suggest feature keeps on popping up. It is really annoying
If you go into NetBeans > Tools > Options > Editor > Code Completion, you can check or uncheck "Auto Popup Completion Window" for whatever Languages you want.
If you move over to the Code Templates tab, you can also customize the specific autocomplete rules for each Language. That way, you can leave certain ones in that you find helpful and remove ones that you find bothersome.