I'm probably the ultimate example of this as I haven't updated any of my current TEN WIP builds here in years for some of them! And, I'm proud of it! Since joining this forum about 2 years ago, I haven't completed ONE build! But, I've been building all that time and thoroughly enjoying it. It's MY time and I'll do what I want with it. I have no excuses for any of it.. it's how I work, it's not due to work, death, babies or earthquakes.
As some have said, if posting a WIP is done at the end, it's NOT a work in progress anymore. I rarely go look when someone posts Under Glass photos and gives a link to WIP photos .. it's done .. I can already see that.
If I didn't post any WIP photos no one would believe I actually build models and I wouldn't get the fantastic encouragement from all the viewers here to continue on with a build!