I have no patience for it and it makes me think the comic creator has very little invested in their work as a whole, and move on to a different artist.
THAT SAID It's hard for me to just lump people together. Lack of passion, injuries, just not sure where the story's going -bunch of reasons- can all play into ending a comic. Ending a novel short, for me since I do it a lot, is similar since "you don't write like you did back then" syndrome comes into play, the writing version of the "can't go back in art".
As a reader of the comics, I say if you still have passion to do the story, there's no problem with releasing the updates as slowly as you want. Don't choke yourself to make stuff for something you do not like anymore.
Now with that out of the way. Imma introduce people to the Teahouse comic. http://www.teahousecomic.com/comic/ This is the definition of bad stuff done by the artists. Whatever happened behind the scenes to cause them to end it the way they did, it just looks like they did a lot of marketing, PR, and such for a comic that they did not care too much about, purely to "hook, line, sinker" sales. For those who don't know the history of the odd series of events, that not many question as far as I'm aware: updates became slower and slower, then almost not at all (less than 1 every 2 months), and finally a physical book of one of the recent chapters was released, just around the same time of this release, they released few copies, and had a large Black-Friday blowout sale to get rid of extra stock to accompany their "end" of the series. The outrage from fans prompted them to turn off comments on their site, and release summaries of each couple's story as it'd play out in the comic. They've since washed their hands free of it, and any PR relating to the comic and such is gone. They've made the firm story that it was dropped 100% due to medical reasons, and decided that there was no possible way to continue. Me, as a fellow creator, seeing this believe it's far too stinky to not be fishy - something else happened that they did not tell fans. It reeks of "let's make a BL comic with some sex scenes that are juicy, promote it at cons like Sakura Con (largest one in the Northwest of the USA), make a killing off it, and then axe it when it gets to be too much to do." Keep in mind, the stagnation of releases were not accompanied by any statements regarding deteriorating mental health, and from the "in the moment" viewpoint any hiatus they took appeared to just be "vacation time".
My point is, transparency is key to keep your fans. If you won't be upfront with them about what's happening, why, or that you just don't want to work on a story anymore for whatever reason - then tell them. Lack of transparency, lack of honesty, and looking like you're just milking it for all it's worth, leaves a really sour taste in my mouth. If you need a hiatus, take it. But inform your fans.