If one looks on the Internet he can quickly see that almost everything one names can be assigned a cult status.
Obviously every denomination has a different set of beliefs to another so therefore basically every group is a cult of some sort.
Therefore how do you determine which is and which is not. For example most Non-Pentecostals classify Pentecostals as people that are of a cult. However every Pentecostal that I have ever talked to used everything that he believed to point me to Jesus. This is very confusing to may non believers.
The question is which Jesus are the Pentecostals pointing toward -- the false Christ, who will rapture you away, or the true Christ, who returns after the false Christ, to harvest all??
1Ti 4:1
Now the Spirit speaketh expressly, that in the latter times some shall depart from the faith, giving heed to seducing spirits, and doctrines of devils;
IMO, one needs to make a distinction between a cult and dangerously false doctrine. Eventhough my favorite preacher is on the correct side of the rapture theory, many that follow my favorite preacher are every bit the cultist that Pentecostals are in their blind devotion to their false doctrines of 'tongues, spiritual gifts, and rapture.
Hence, I have concluded that cultists most likely exist in every denomination and every denomination will conclude the other denominations to be cults. By defiinition, those that have an obsession to a person or principle is a cultist. Well, those, who are obsessed with God's Truth, would fall under the definition of a cult too.
Accordingly, the term 'cult' is overrated and misused. It is better to focus on Bible Truth. Of course, those, who, after being taught the Truth, refuse to accept it, are surely among the 'willingly ignorant' and most likely cultists.