i don't know what the translators are thinking, but in reality, hoarding up chapters is one way you can loose the majority of your readers.
I just find all the ending cards hilarious because of this.
"Guyyyys only 2 people signed up for our Patreon in the last 3-4 months
"
Like, maybe it has something to do with how you guys haven't updated the manga on one of the largest scanlated manga hosting sites for the last 7 months? They're begging from the much smaller audience that's chosen to go to their website, or the variable audiences from whatever automated aggregators have ripped the scans from their site (aka the least likely group to donate).
Not to mention that withholding releases from MD for financial gain (necessary or not) hardly endears the scanlation group to the MD audience and reduces readership overall.