There are many traders that work with really big amounts of money. They know that with enough FUD the price doesn't rise too fast or even drops, allowing them to buy more and more since after Bitcoin Futures will get to be traded the price could (should!) skyrocket even more and they'll profit.
I guess that there are traders that earn enough even only from the small ups and downs Bitcoin makes every day. And for that some negative news always "help".

It's because of the huge pump in recent months that leads everyone to believe it is a bubble waiting to burst.

True,this time we did not expect the price of bitcoin, since bitcoin is popular in some countries we could say that it is very beneficial to the user and now the expectation of people in the future is so high because of earn profit.

In my opinion, the one reason why bitcoin have negative images is because of being crypto-currency. This is because we can use the bitcoin in online transaction that cause of illegal doing by the people, and this will the reason why the bitcoin will crash if this will happen/use.

Don't listen to them and all their negative comments about Bitcoin. What they are doing are simply spreading FUDs, the exact meaning of FUD. Just look at what they have got so far? Bitcoin has risen to break its ATH every now and then. FUDs may make a little dent to the price of Bitcoin but it can hardly cause it all the time. Just focus on making your Bitcoin investment grow because the coming BTC value is even bigger.

many say that because they do not know what Bitcoin is. and they did not try to join bitcoin so they said positively about bitcoin. I think maybe business competitors that's why many people are said about bitcoin.

Because there are always two sides of the coin. If there is positive news, there is negative news that's why it can't really be prevented that there would be some negative news because many people are still in doubt about the coin and its future. There are many bankers who are against it because it is a threat to their business while some are open to it so some of the negative news are from them. We know that there are bitcoin whales holding large amount of it and they are doing manipulations as well to have more and a negative news can make the price lower so some of the news are just their strategy to make it cheaper and those weak hands will just sold their coin especially those who just entered the crypto scene seeing the price volatility of it.

Has there been any negative talk at all? I've found recent news to be quite positive, just like what you stated.

The only negative talk I've heard recently was about Bitcoin Cash, and that was hardly organic. It was an organized attack which capitalized on Segwit2x's cancellation that integrated social media FUD with mempool transaction spam. Things were looking bleak for like a day or two before things settled down and Bitcoin went bullish again. You can safely ignore what you hear about this (inflated transaction fees, very slow transactions, etc.) because these are direct consequences of the attack.

But yeah, in general, the mainstream media seems like it loves Bitcoin again.

Those negativities are only trying to scare us. Bitcoin is really unpredictable but we dont need to worry about it. It is strong as it is right now.

I dont think that the negative talk about bitcoin have just occurred lately. Since I heard about bitcoin back in 2009, there have been a lot of negative talks about it, and I was very unfortunate to have listened to that. But since I have known a lot about bitcoin when I joined this forum, I think that bitcoin has even become stronger today.