Only they can answer the motive of their admissions. No one can speak for them.
They are not in the club of those redeemed in Christ. Those redeemed in Christ are no longer sinners but saints. How do we call ourselves saved and sinner at the same time. When we were saved from being sinners dead in our sins.
Berean Publishers (Acts 17:11)
Are Christians Sinners or Saints?
"There are 28 uses of the word sinners and 13 of the word sinner in the New Testament Scripture.
None refer to people who have come to a saving faith in the Lord Jesus. ....."
.....
Conclusion
Never in the New Testament Scriptures are true Christians called sinners. Rather, sinners are those who will not inherit the kingdom of heaven and are subject to the wrath of God. Those who continue in sin do not know God and have never known him. Those who have received the knowledge of the truth but deliberately keep on sinning have only a
fearful expectation of judgment and of raging fire that will
consume the enemies of God (Hebrews 10:26).
It is neither accurate nor appropriate for a Christian to use the saying, Im just a sinner saved by grace. It is both accurate and appropriate to declare: I was a sinner, but have been saved by grace through faith.
True believers are frequently referred to as saints. They are expected to live blameless and holy lives before God. Scripture reveals the special place in Gods heart for his saints.
Sinners and saints will be judged
according to what they have done. Saints will be rewarded according to what they have done. Sinners will be judged and condemned according to what they have done.
Tragically millions may be lost, deprived of salvation, because of false teaching, most notably the doctrine of unconditional eternal security, once saved, always saved. This doctrine also teaches that once one has had a salvation experience, all future sins are forgiven. This doctrine is false! It is foreign to the Scriptures.
Salvation is for those who receive Jesus Christ as their Lord. True followers of the Lord Jesus are obedient to his teachings and commands and do the will of God their father. Those who persevere to the end will enter the kingdom of heaven.