Why check frequency with case sensitivity?

Question

Search Engine Optimization

There are several key phrases

Фраза					Частотность ""	Частотность "!"
сниму квартиру в нижнем новгороде	1934		119
аренда торговых площадок		1030		12

2nd column - exact word form
3rd column - exact word form case-sensitive
Is it worth refusing to promote these phrases because of the low frequency, case-sensitive?

Answer 1

So,
Thus, "I'll rent an apartment in Nizhny Novgorod" - this includes impressions for queries, for example, "I rent an apartment in Nizhny Novgorod", " I rented an apartment in Nizhny Novgorod", etc.
Probably the most frequent request with the operator "!" will be - "! Rent! an apartment! in! Nizhny! Novgorod".
It is up to you to decide whether to refuse promotion or not, but keep in mind that in the search the site is ranked not only by 1 strict word form. Therefore, even if you do not "specially promote" for any query, but there will be a relevant answer on the site, you will most likely take part in the ranking.