As an addendum to this, wearing the Fresh Ink Tank will give you the following error an.. indeterminate number of times each second:
[Warn] Unique status effect 'maxhealthscalingboost' not found in status effect database
That's about all there is to it.

I noticed the game lagging like hell while I was walking around the ark a short while into a gameplay session, and checked the log files to figure out what was going on only to find a ~67mb (!!!) logfile that notepad refused to load
After restarting to generate a new, less cumbersome logfile to grab the error itself, I stewed on it a bit and experimented and found that taking off my fresh ink tank caused it to stop growing.

/Interesting./
I'll tweak the effect on the Fresh Ink Tank, then-- see, the normal Ink Tank has an energy stat boost, while I intended for the Fresh one to boost health, but... clearly something failed miserably here!

That's incredibly horrifying, though, and I'm sorry you had to put up with it. ! _!

This has now been fixed. :)