Entry in progress—B.P.
(deflation + -ista, as in words such as “Sandinista” and “fashionista”)
A similar term is “inflationista.”

Twitter
flix1
‏@flix1
http://tinyurl.com/33pjnm
Mish vs. Schiff
2:08 AM - 1 Apr 08

Twitter
todd sawicki
‏@sawickipedia
count me in the deflationista camp http://snurl.com/36ckv
11:32 PM - 27 Jul 08

Twitter
StockJockey
‏@StockJockey
China’s economic propaganda - careful with JJC /FCX etc etc for Deflationista’s only http://bit.ly/113aBG
9:00 AM - 13 May 09

Financial Times—Alphaville
Inflationistas, deflationistas and Goldilockeans
Tracy Alloway | Jun 02 2009 10:20
The inflation vs deflation debate rages on. To help FT Alphaville readers, we’ve compiled a handy-list of what we’re calling inflationistas — those who are publicly betting on high or even hyper-inflation, and deflationistas — those predicting a downward spiral in prices.
(...)
Deflationistas:
David Rosenberg (maybe)
Roger Bootle
Stephen King
Joseph Lavorgna (no link)
Paul Krugman

SilverDoctors
ALASDAIR MACLEOD: THE DEFLATIONISTAS ARE WRONG
OCTOBER 17, 2013 BY THE DOC
Alasdair Macleod joins Rahul from Alternative Investors to discuss the most recent episode of gold and silver manipulation which saw approximately 2 million ounces of paper gold dumped on the market in 3 minutes Friday, as well as Iceland’s recent debt default, and how it proves the deflationistas are WRONG about what is coming to the west.