your question is extremely weird
block height is the number you see as the last block mined for example the last block was 467849 by the time of writing this. you can't reduce this! it is representing the longest chain and number of blocks that have been mined so far.
i don't understand your main question either.
if you want to help others un-stuck their stuck transactions then lead them to this topic:
https://bitcointalksearch.org/topic/all-about-stuck-transactions-and-what-you-can-do-to-fix-them-1802212and if you yourself know about the fees and how much is appropriate then teach them that too.
Well... I know about the fee and everything, as to go to viabtc to accelerate the process and etc.
What I dont understand, is that people are now paying their transactiosn fee a way higher price to get them processed as it was 5 years ago, but btc price has greatly upgraded... Guess there is some stuff I have to catch on myself as well.
I'll check your link and study it carefully, thank you for your quick answer.
( Edit : My main language is French, there will be some obvious typo, but i'm about sure you'll understand my points )