What I post is an opinion only and I am far from a professional! I choose to put an emphasis on fundamentals, and even if something screams a buy, I've learned that the stock may not move just because the fundamentals say it's undervalued.
If I post about a stock, it doesn't necessarily mean I hold shares - I often like to just discuss plays for the sake of conversation. If I'm negative, I am not short as I do not short stocks - see prior about 'sake of conversation'. This is a forum of discussion...for ideas - do you own DD and take responsibility for own trades.