how is this dangerous for "newbies" or even "oldbies"

the main reason for the danger is, first, there is no 50% Pisano Fibonacci measure, secondly, a 50% pullback is typical for many traders to exit on, for new sells to come in and drown accummulation, it's a common ground , thirdly once a Fibonacci is broken it's usually a continuation signal, the level gets broken, a small retest and then back in the same direction of the break, fourthly, your Fib appears to be applied generically and upside-down(why 23.6 when 27.2 triggers more often etc) so you are not looking to fit any other rmeasure, fifth, you are more likely to find the resistance by looking for the extension measure of 75040 to 78698 and applying that to the low, sixth, if you have to use a regime such as a Fib then may as well apply the Elliott as well, oh yay, a five wave decline with an overlapping target of the underside of wave one down by a fourth wave bounce with typical ABCDE characterisitics and maybe you'll find Fib measures in those too......lol......finally, maybe get rid of some of those tram tracks so you can actually concentrate on the (historic) picture in front of you

this style of trading is a hit and miss affair, a non-verified or unassociated application of an upside down Fibonacci measure and you havent shown the lower time frame that verifies the Evening Star thing, in other words, applying the same game again to the next chart is just as likely to go r s over tit as it is to work in your favour and exactly the reasons so many traders lose on large time frame appearance of candle and fibs because youre not uncovering the underlying game ....it is far more likely that the candle formation is a random appearance of the group of traders than it any efficacy of a trade set-up and we arent seeing stats that say otherwise.....

this is just my two cents worth on un-promoting what is shown here to 'work'

newbies
go across chat rooms on the interweb and you'll find a plethora of these "it worked" charts .....finding good explanation for them is quite difficult, you get a fraction of the picture, usually wrong and remember the ideas are fine for chatting about but applying to the next trade is, i say with humility, incomplete and misleading.....

someone once said, once a trader has decided to make the trade on whatever your preferred triggers are (in this case a candle formation and a Fib) then the rest is about money management and while i agree with that thinking i add that you can money manage your way into zero funds by a thousand cuts with this type of application, so, still these set formulas that come from text book ideas have a limited protective value.....i've proven to myself that a colour by numbers approach is fine but trading signals, that are at best subjective has a high lose ratio