Here's some general advice: if you're going to make investment decisions off specific events such as what you've listed — chances are, you're going to end up having a really bad time.
As for trading, while you sure can make quick trades over pumps/dumps, not because a certain news is bullish, it doesn't mean you're going to make money through an upwards price movement. A lot of times, if a certain news is bullish but everyone ended up expecting that certain good news, your long positions can end up in a very very bad situation.
You would be mostly be fucked up if you are really always sticking with fundamentals and as mentioned that not all the times you would really be seeing that these sentiments or news would make out some corresponding
effect on the entire market and if you do make use of it as part of your analysis then it would mostly ending up on disaster or lose of investment.So its still a personal choice whether you do apply it fully 100% on fundamental analysis or would still varying with some technicals or overall mixed up. So it would vary or depend.