I think it doesn't matter if we are in a bull run or bearish trend, scammers will be scammers. Although it is just magnified in the bull run as there are a lot of newbie investors and this is the target of this cyber criminals and scammers.
So it's very important and I think this is the number 1 thing that every crypto investors need, educate themselves on every project that they put their hard earn money. And as we have said before, “If it is too good to be true it probably is". Meaning, if the offer appear too ideal or promising, it's wise to approach them with a degree of skepticism and investigate further.
It's true that scammers don't take breaks they operate everyday of the year looking for victims to steal from, but Bitcoin bull run season is also a boom season for them to scam more people because many newbie investors will enter the market. As the OP has stated areas to watch out for it's important for anybody that's looking to make the most of the bull season to be very cautious and carry out thorough research before putting their money in any crypto projects, because scam projects will be on the increase. The Bitcoin ETF approval is a new angle that scammers will also utilize to scan victims because the concept is new to most crypto users, it is an area that should be very well researched so scammers will not tell you make believe stories to steal from you.