Paint stripping tip and a rust question

[BOXER957]

I've been reading a lot of builds on here and a couple things I've noticed is a lot of people when stripping paint to bare steel are using either air-tools and/or a lot of sandpaper. A lot of wear on the compressor. I try to use an electric grinder with a twisted wire wheel or strpper, but the easiest method I've found to strip to bare metal is Aircraft stripper. Use a metal dog water bowl, pour some in the bowl, brush it on the area you want to strip. In about 10 min's you just scrape it off with a putty knife right to the steel. Way faster, cheaper and cleaner than any other method I've found. Now, my question about rust. I see a lot of people pull up their old carpets, find all the rust underneath and clean it up. After that they just apply dynamat or some other sound-deadening material. I always blast and paint any metal I'm hiding with a couple coats of POR-15 it completely encapsulates the metal and moisture actually strengthens it and then spray some bedliner just as an added precaution. To me it would seem that anything you've found rust on and went through the trouble of removing the rust, wouldn't it be a good idea to stop it from recurring?