Answer: allcaps

AnswerCrossword Clue
ALLCAPSLIKE THIS
ALLCAPSLike NASA and FEMA
ALLCAPSEmphatic type ... or what the beginnings of the longest entries are?
ALLCAPSProofreader's notation
ALLCAPSTypesetting instruction
ALLCAPSIndication of excitement in an e-mail
ALLCAPSIndicator of stress
ALLCAPSWHAT THIS IS IN
ALLCAPSWhat an urgent message may be in
ALLCAPSAcronym format, often
ALLCAPSChat room equivalent of screaming
ALLCAPSOnline equivalent of shouting
ALLCAPSSign of online shouting