I was browsing several topics about bitcoin here and found the term "hodler". I know it is someone who prefers to hold coins, I presume to sell it for higher price later.
Sell or buy something with it, ideally only with a small portion (smaller every year as price increases in an ideal scenario).
In my mind being a speculator means you agree to set the particular price(lower or higher) with other speculators like you to manipulate market participants. Am I right?
No, where did you get that idea?
https://dictionary.cambridge.org/dictionary/english/speculatespeculatornoun [ C ]
UK /ˈspek.jə.leɪ.tər/
US /ˈspek.jə.leɪ.t̬ɚ/
a person who buys goods, property, money, etc. in the hope of selling them at a profit