I had to put my 290mhash/s ( 
) offline for a day and a half because the temperature outside was ~30°C. That surely caused the difficulty to go down a bit. 
Now it's back to 16°C outside and my miner is up again. Where I live, air conditioning is only available in modern houses (if at all), and the house where I live was probably built more than 60 years ago. And buying A/C is just too expensive for 290mhash/s, and there's additional power costs, so I'll just turn it off whenever it gets too hot.
) offline for a day and a half because the temperature outside was ~30°C. That surely caused the difficulty to go down a bit. Now it's back to 16°C outside and my miner is up again. Where I live, air conditioning is only available in modern houses (if at all), and the house where I live was probably built more than 60 years ago. And buying A/C is just too expensive for 290mhash/s, and there's additional power costs, so I'll just turn it off whenever it gets too hot.
Yeah, all my neighbors with central air are gonna be complaining like all hell about the power bills... many of them already are. The ones in my neighborhood who are retired or disabled, and are home all day... if they have central air their bills are almost double mine. (And I'm running a ton of hardware besides my GPUs... I'm a geek who never leaves the house.) The building I'm in doesn't have central air... the cooling system is less powerful, and it was uncomfortably warm in some parts of the house today, but where I put the miners, it stayed cool enough that they weren't overheating. And our primary cooling system -- which handles almost the entire house -- draws only 400 watts of power. So my profitability threshold is much, much better than most of the people I know who are mining in homes with central air and the like.
But one of them already put his stuff up on a local list, and it might end up with some gamer instead of a miner, and so on. But as summer drags on the cooling needs may push more people out. Difficulty might end up going down at that point. 
