I ended my reading of the post here. Who actually said they believed problems will come to the end after the death of the body? I imagine those who have great faith in the here & now Dhamma are so because they are intent on ending suffering in the here & now.
If fact, my impression is many who regard ārebirthā as the essence or heartwood of the Buddha-Dhamma are the ones postponing practice for a future life. I recall, for example, a certain renowned scholar monk ssemed very clear about this when he proposed in his Just War Theory it was OK for the average Buddhist to kill Nazis in war because the average Buddhist had no interest in here & now Nibbana. Similarly, I have heard Ajahn Brahm say: āits OK if you have messed up this life; you can try again in the next lifeā or similar.
Interesting quote. I recall when a stayed in a monastery this was chanted every morning & every evening by the monks. From my reading of the sutta, I have gained the impression this is the sole description of the Refuge in the True Dhamma.
I did not read the post however to answer final question, Iti 90 and AN 4.34 say the highest kind of trust is trust in dispassion:
Fading away is said to be the best of all things whether conditioned or unconditioned. That is, the quelling of vanity, the removing of thirst, the abolishing of clinging, the breaking of the round, the ending of craving, fading away, cessation, extinguishment.
YÄvatÄ, bhikkhave, dhammÄ saį¹ khatÄ vÄ asaį¹ khatÄ vÄ, virÄgo tesaį¹ aggamakkhÄyati, yadidaį¹ madanimmadano pipÄsavinayo ÄlayasamugghÄto vaį¹į¹upacchedo taį¹hakkhayo virÄgo nirodho nibbÄnaį¹.
Those who have confidence in the teaching of fading away have confidence in the best.
Ye, bhikkhave, virÄge dhamme pasannÄ, agge te pasannÄ.
Having confidence in the best, the result is the best.
Agge kho pana pasannÄnaį¹ aggo vipÄko hoti.
In MN 56, Upali become independent regarding the Teachings.
Then UpÄli saw, attained, understood, and fathomed the Dhamma. He went beyond doubt, got rid of indecision, and became self-assured and independent of others regarding the Teacherās instructions.
Also, in MN 56, Upali had the following realisation:
āEverything that has a beginning has an end.ā
āyaį¹ kiƱci samudayadhammaį¹ sabbaį¹ taį¹ nirodhadhammanāti.
The realisation of Upali was not:
āEverything that has an end has a re-beginning .ā
āyaį¹ kiƱci nirodhadhammaį¹ sabbaį¹ taį¹ nā upapajjati ti.
Does āsaggaā mean an āafterlife-heavenā in SN 35.135 & AN 10.73?
To end, I have not read anyone on this topic denying ārebirthā. However, it seems quite clear the Buddhaās supramundane (lokuttara) practice was as follows:
āDonāt run back to the past,
āAtÄ«taį¹ nÄnvÄgameyya,
donāt hope for the future.
nappaį¹ikaį¹ khe anÄgataį¹;
Whatās past is left behind;
YadatÄ«taį¹ pahÄ«naį¹ taį¹,
the future has not arrived;
appattaƱca anÄgataį¹.and phenomena in the present
PaccuppannaƱca yo dhammaį¹,
are clearly seen in every case.
Tattha tattha vipassati;
Knowing this, foster itā
Asaį¹hÄ«raį¹ asaį¹ kuppaį¹,
unfaltering, unshakable.
Taį¹ vidvÄ manubrÅ«haye.MN 131
In summary, it seems those who believe ārebirthā is the essence/heartwood of the Holy Life will not be able to end ārebirthā unless they abide in the present moment, see the true nature of the present dhammas and eradicate craving & self-view in the present moment.