Short answer: not inherently. Many Pisces are sensitive, peace-keeping empaths, so their people-pleasing can read as 'fake nice.' If you've felt buttered up then let down by a Pisces, you're not imagining it - avoidance and overpromising can blur intentions. Astrology describes tendencies, not morals, but yes, Pisces energy can default to soothing words when they're overwhelmed or afraid of conflict.
The fix isnβt decoding their Sun sign - itβs watching consistency and setting clear boundaries. Ask for specifics, give timelines, and notice whether actions match promises. Trust your gut when praise feels performative; you can appreciate kindness without excusing mixed signals. If you are the Pisces, practice honest no's, take space before agreeing, and let feelings land before rescuing. Empathy works best paired with follow-through.