Have fun to trade on my U2 system.
Your trust feedback tells that your site is a Ponzi scheme, so I would not advise OP to play there.
Hello ! So far I have not done that in the past
I have several questions:
1. What is the best site for this (I would prefer a site that accepts small amounts of BTC, such as ~ 0.005 BTC )?
2. What are the risks?
3. I suppose you have to buy cheap and sell expensive, but can I buy now and wait for a day, a week or a month to increase the price?
4. Is there a trust site that offers a non-deposit bonus?
Thank you very much !
1. I would check with altcoin exchanges. The bigger ones, like Poloniex and Bittrex. Make sure you secure your account (including 2FA). Then you trade on altcoins vs Bitcoin.
2. The risks are
a. Your computer is hacked, people get access to your funds and steal them.
b. Exchange gets hacked and you lose your funds
c. Bitcoin falls to 0
d. The altcoin you bought get no trades or gets delisted and you end up with worthless coins.
e. The altcoin you did bet on falls to 0.
f. The alcoin blockchain gets hacked and your funds become worthless or stolen.
g. Due to bugs or human error your transfer gets lost.
h. You buy high, get scared, sell low and do the same multiple times.
i. ... more risks may exists, but I'm too lazy to point out more.
3. Of course you can wait, if the amounts are so small you can even keep your money in the exchange to avoid transfer fees, just yeah - read the risks list.
For some coins you can use on Poloniex even the lending feature, although in that case you don't have access to your funds until the lending period ends.
4. I don't know of any legit one.