Let's operate under a couple of assumptions here.

Assumption One: I am who I claim to be, a town-aligned Jailkeeper.

Assumption Two: I am a somewhat competent Mafia player on occasion.

Operating under the premise the the above two assumptions are true, let us further speculate on why I have not disclosed my actions to this point. It could be because I was softly trying to influence the town's direction in favor of, or away from, a particular lynch target, while still trying to preserve my anonymity. It could be because I was breadcrumbing my role in a long-term effort to first set up my role and then drop the hammer when I finally had information of worth to reveal. It could be because I have no information of value from the actions I've taken so far. It could be because I'm waiting for more people to chime in on the issue first. It could be because I believe the mafia, as it currently stands, will be better served to adapt and react to the information disclosed than town.

Three of the five possible scenarios are correct here.