Alerting people to buy the stock!
AVXL in this case. I do that. I did that. I have often regreted doing that, and so try very hard not to. But I don't regret telling people about AVXL.
There are many wiser than me on this message board. Great board! I should defer to them, but I will add one thing that at least makes sense.
My tendency is to spread the news about a stock when I am excited. That is often after it starts to climb, even though I may have been studying it for a while, and may have invested before the climb.
But to tell people during a steep climb, when you are excited, is probably to be avoided. You don't think as well during a steep climb. The oxygen gets thin, and all that is left to breathe is helium.