over-appreciation

noun

1. gratitude; thankful recognition: They showed their appreciation by giving him a gold watch.
2. the act of estimating the qualities of things and giving them their proper value.
3. clear perception or recognition, especially of aesthetic quality: a course in art appreciation.
4. an increase or rise in the value of property, goods, etc.
5. critical notice; evaluation; opinion, as of a situation, person, etc.
6. a critique or written evaluation, especially when favorable.

noun

1. thanks or gratitude
2. assessment of the true worth or value of persons or things
3. perceptive recognition of qualities, as in art
4. an increase in value, as of goods or property
5. a written review of a book, etc, esp when favourable

n.c.1600 (with an isolated use from c.1400), from Anglo-French appreciation, noun of action from Old French apprécier (14c.), from Late Latin appretiare “estimate the quality of” (see appreciate). Generally with a sense of “high estimation” from c.1650. Meaning “expression of (favorable) estimation” is from 1858; sense of “rise in value” is from c.1790.