Maybe he doesn't want to keep the coins overnight, volatility of Bitcoins is no news.

Yes, but here is the newbie forum. I believe a handful of new-comers don't know about the extra fee, paying unnecessary expenses without even knowing about it.

For example, a seller from USA is willing to sell a bitcoin for 100USD, everyone using USD as their main currency could buy it for 100USD
However, if GBP is your main currency, you have to pay 102.5 USD and the price displayed to you is 102.5 * 0.6565 = 67.29 GBP.
You also need to pay the 0.6% commission as usual, you pay them in bitcoins when you are buying, so you will receive 0.994 bitcoins after the trade is done.
The same logic applies when later you want to sell the bitcoins in GBP, anyone from USA will view your price 2.5% higher than the price you requested, which means that you will be less likely to sell it.
With the premise that most of the trade is done in USD, you are at disadvantage when using any currency other than USD.

Consider how much they earn per day, the quality of service provided by them is infuriating. They act like a start-up.

People can still trade Bitcoins during weekends, the higher volume in weekdays is because of more corporate traders who are the true manipulators of the price.

You are better off working in McDonalds than spending time on those "free" websites, you will earn more.

Guiminer, no command line, no parameters, no hassles

5 posts?

It is totally normal.
If you don't have access to the high-end computers and miners, it would be more profitable to mine Litecoin instead as it puts less emphasis on GPU power.

Although they tell(or mislead?) you that they support trading in different currencies, doing so costs you extra money.
When you buy bitcoins from a seller using a different currency, they would hide the extra 2.5% fee into your order(you will see a price 2.5% higher than the actual price), in other words you are paying more money for the same amount of bitcoin than the others. This fee is in addition to the 0.6% transaction fee. Since the market is dominated by US dollars, and thus most sellers accept USD by default, it would be wise to only deposit US dollars into your account if converting to US dollars in prior costs you less than the aforementioned 2.5% fee.

Just a friendly reminder to anyone who are about to deposit money to MtGox and don't make the same mistake of me.

The information is well-hidden here:

source: https://support.mtgox.com/entries/20800336-Multi-Currency-Trading

add 5Gh/s * your order number to the network hashrate to calculate your potential income
why 5Gh/s? because it is the minimum hashrate of a ASIC miner and by assuming that every customer before you only purchase a 5Gh miner,
with that said your potential income is even worse than that.