Don't know why GTSM quit placing a Ask, but the last few you've seen, were because of my playing.
A couple of weeks ago, I noticed 2 days of him not placing a Ask, so I put one in for several days.
Like I said, just playing with him.
I would put in a Ask of $50 and then all of the sudden, he would double up on whatever I put in. Was only doing 50 or 100 shares, just to see what he would do.
All that said, I think they just aren't bothering with it, since the ticker is for sale and the only activity is, every now & again, someone caught by the R/S decides to dump.