I work in a lot of legacy files that are huge and previous devs didn't always follow proper styles, so syntastic gives me a ton of linting errors that I don't care about right now. I put syntastc into passive mode and manually check the file then close the location list, which works great. But, after I've manually checked it, every time I :w, the location list opens back up and shows the previous errors. I can't figure out a way to keep this from happening. Any suggestions?
Do you have the syntastic_mode_map option set in your .vimrc? This may influence how Syntastic does automatic checking:
In passive mode, automatic checks are still done for filetypes in the "active_filetypes" array (and "passive_filetypes" is ignored). In active mode, automatic checks are not done for any filetypes in the "passive_filetypes" array ("active_filetypes" is ignored).