I hope this doesn't descend into another series of posts throwing insults at each other but reminding ppl of taxes is a good thing.
Especially when making trades of big gains under a year and doing them on major exchanges like Coinbase and Binance.
Over 30+% of short term capital gain tax and those gains may throw you into a higher tax bracket.
The exchanges will have your tax forms available for you at the end of the year because they're keeping records.
But like manny said, I'd rather pay 30% on 100k than nothing at all.
If you have throwaway money, it doesn't hurt to take shots. If you win, just have a little bit left over for Uncle Sam's cut.