Do you adjust your weight settings if you have put weight on

Whether or not I record is kind of arbitrary. I won't log a gain if it's close to TOM (it'll come off in a week anyway), or if I just started a new exercise (it's just water weight), or I haven't pooped in a few days (sorry, TMI). To be fair I won't post a loss either if I don't maintain it for at least 3 days.
I've dealt with all of this in the past couple weeks. I started Insanity last week and immediately went up 3 pounds. Over the weekend (when the water weight should have been coming off), I got a little stopped up, then when that was moving again, TOM started up. I'm still 2 pounds up but I know it's not "real" gain. It'll be gone in a few days when I've adjusted to Insanity and my nether regions are back to normal.
If the scale goes up because I've been eating more than I should and not exercising, I catch it quickly because I weigh daily. If I still gain because I weigh daily and don't care, I will log the gain and use it as motivation get get going.

I WI once a week & record that weight (be it a loss or a gain).

My start weight I have re-set once since I originally entered it a year ago when I joined MFP. I just re-set it this week (the 'one time') because I have put on over 10 pounds in the last year & wanted a 'fresh start' with the accurate number. I was getting hung up on that original start weight, so I figured it best to adjust it to the current weight & get that old # out of my head. I'll get back to that # & eventually get lower than it!