The phrase “had in remembrance” is similarly used in D&C 68:30, where we are taught that the “idler shall be had in remembrance before the Lord,” or in other words, will be judged of the Lord. The "judge of my people" refers to the bishop or other duly appointed Judge in Israel. However, I'm not exactly sure what "the season" refers to, nor could I locate any commentary on it. Nonetheless, we are continually commanded to pray always, so "the season" appears to connote our regular course of prayer.
Consequently, according to this scripture, if we don’t continue to pray we can potentially be brought before our Ward Bishop or Branch President to answer for ourselves and explain why we haven’t kept up on our prayers. Notice that this is a direct "commandment" from the Lord, and the Lord follows this commandment up by declaring that "[t]hese sayings are true and faithful; wherefore, transgress them not, neither take therefrom" (D&C 68:34).
Joseph Fielding Smith briefly commented on D&C 68:33 in the October 1918 General Conference: “[W]e ought to be a praying people, and if there are in Zion those who do not observe their prayers in the season thereof, they are amenable to the law of the Church and may be brought before the judge, or in other words, the bishop, and he can try them for their fellowship, because the Lord himself has declared it in these words which I have read unto you” (Conference Report, October 1918, 57).
I wonder if any Bishop or Branch President has ever used this scripture in dealing with a member of their congregation. It seems like something that would likely have been brought up by the early Saints.
Does anyone know anything more about this scripture, or have any commentary that could shed some light on it?