The challenge with the statement “...that a particular line of Jews (Sabbatai, Frank, etc.), in anticipation of the Messiah like yourself [me] certainly did [draw an obligation]”
is that they concocted obligations that were outside of and not permissible by the code of Jewish law— they were unwittingly sinning at best, heretics at worst. You can’t draw conclusions about normative Orthodox Jewry from those examples. Orthodox Jews want to increase in the performance of mitzvas (commandments) and in Torah learning (which is in itself a commandment for Jews.)
I’m afraid you cannot draw conclusions about Bible prophesy (Jewish or end-of-the-bookish) with those examples.