This might be an older travel trailer issue - you know when trailers were built a bit sturdier but once again...
"SLIDE OUTS: In extended use situations, it is advisable to
add support blocks under the slide room. Do not raise the
room, but just touch the bottom. Also, during prolonged stays
it is advisable to run the room in and out occasionally to ensure
proper lubrication. "
page 21 last paragraph.
it also states
DO NOT ATTEMPT TO USE JACKS STANDS
OR STABILIZER JACKS TO JACK UP THE
TRAILER OR SUPPORT THE FULL WEIGHT OF
no one here is stating to change a tire on a trailer or lift the trailer off the ground with a stabilizer jack.
And if people are going to use the term stabilizer vs support as an argument... I would think a blocked support would do more damage than the light stabilizers seen today as blocks which carry more weight and would not fold as easily.
If you've NEVER seen a manual that promotes supporting the slide out well they do exist. Support is support.
2009 Heartland Sundance 31.5 XLT bunkhouse
2013 Ford F150 XTR ECOBOOST
"Of the troops - For the troops "