Ok I short at $245. Wish me luck.

Do you have an exit strategy? Never open a trade without one.
At what level of loss will you accept your original decision was wrong and get out?
No exit strategy. I'm really brave.
Plan on taking profit around $230.
Brave people die young and poor

(seriously, get an exit strategy right now)
Could be still some months or even a year ahead of us until we see the top of the next bubble. But I agree that people have to learn to take their gains. If you never realize your gains, you never actually made them!
I just don't understand why "shorting"

Is there anything behind this decision ?
TA = bullish (IMHO)
bitcoin events = bullish
some guys on the forum = bearish
Of course we can go down further but I 'd need some real facts before betting my shirt on it.
Not especially talking about shorting here... Shorting now would be the big gamble in my opinion. But if there's a really huge bubble, people would surely be best off if they sold near the top. Some people just don't 'see' or realize where they are as soon as a bubble happens.