Absolutely. He has been charged with a crime, there is actual evidence against him that is in the public domain, etc. I am already on record as saying that it is fine also to discuss, for instance, Ryan Braun -- since there were a lot of reports on his failed test, the mishandled samples, whatever.
These stories are far different than posters trying to invent a far-fetched case against Yadier Molina based on statistical "evidence" and (at the very best) hearsay. It's also far different than making stuff up about Brandon Phillips' paternity and then casting judgement on what he (possible) may have done (or not done). I can't believe folks here don't recognize the difference!