Yes doing or not is totally your choice. But as I said, we should recognize that this safer trading opportunity comes from the community (by discounting feed, which in turn can increase sell pressures on STEEM). One can ask us that, "What did you guys do when Steem Dollar went down from 0.95 to 0.80?". I can show him my trading records with placing orders at 0.95. But showing a buying records at 0.80 or round may make less sense for him.
You can make a little profit that compensate your efforts. You can avoid exploitation from other traders. And you can slow down SBD price decrease. But your current position cannot help an increase of SBD price towards the peg, IMHO.