You're stuck in the mode of
Don't make assumptions. Instead try reading the WORDS in your screen. I specifically discuss bitcoin as a currency here. So I ask you, specifically: Why would you be upset that your purchasing power keeps increasing (assume for the sake of discussion that it does)?
to be fair, TERA does have a point. A currency which is not relatively stable in its value (be it by losing or gaining value) might be impractical for business and settlement of contracts.
Besides that most of the argument of "deflation = bad" seems to stem from the assumption, that without a currency which is constantly losing value, people will resort to *gasp* saving and not consuming beyond their means, which is supposed to be universally bad for any economy. Though that is only correct for a fiat economy based on debt with interest, which is demanding perpetual growth to avoid inflationary collapse.
To summarize: a currency that increases in value is a terrible thing
for the current establishment, which is in charge of the current monetary system. It is a wonderful thing for its
users and the biosphere in general, because it provides incentive to spend and consume less - which seems to be exactly what is needed now.