Ruined FOREVER

Fans realize something Hasbro does not, that robust 25-year-old billion-dollar franchises, while seemingly healthy, are in actuality as fragile as two bricks tied together with tissue paper. One mistake, one bad mis-step will cause the entire thing to shatter and fall apart; and Transformers would be ruined forever.
Fortunately, there is hope. The Transformers fanbase has resolved to remain ever vigilant against something that could Ruin Transformers Forever, and call out a warning if they see something that could potentially do so.
Some Transformers conservationists suggest a more extreme approach, that Transformers should abandon all attempts at re-invention and instead <a href="http://en.wikipedia.org/wiki/Masters_of_the_Universe#Masters_of_the_Universe_Classics_2008-" class="extiw" title="wikipedia:Masters_of_the_Universe">cater exclusively to the old-school collectors</a>. Though attractive, this approach may prove impractical as a long-term solution.
Ruined Forever remains a serious threat to Transformers now and in the foreseeable future, though it's possible a proposed initiative requiring all Transformers fans to purchase an annual "<a href="http://en.wikipedia.org/wiki/Carbon_offset" class="extiw" title="wikipedia:Carbon_offset">plastic offset</a>" could ensure our fragile brand's existence through the mid-21st century.
Things that have Ruined Transformers Forever in the past
- Killing Optimus Prime
- Transformers that don't transform
- Munky
- Hippies
- Reboots
- Pokeformers
- Perverts
- Bayformers
- Teen Titans
In other words... pretty much everything.

