I'm not sure what's there now, but last summer there was a "hand-rail" of tat running along the top of the whole buttress (though not visible from below), at least one bolt (possibly a whole two bolt lower-off IIRC) near the top of the E9 and then a fixed line running all the way to the floor down the HS, from memory with loads of in-situ knots presumably for clipping in lanyards. The fixed line wasn't visible from the main path as it's round the back, but it is certainly somewhere easily accessed by non-climbers which doesn't seem like a great idea.
Earlier in the day we experienced an E2 requiring an ab from a long dead tree surrounded by horribly loose rock, genuinely the worst belay I have had to use in many years. But I guess nobody has added any fixed gear there because they actually read the RAD.