Don't pretend Labour's options are simple.

Vote for #BrexitDeal:
+ Avoids No Deal & tells EU that Labour wants a relationship
- Gets Labour's hands dirty

Abstain:
+ Both Deal & No-Deal are bad
- Looks indecisive

Vote against deal
+ Clear opposition to Brexit
- Risks no-deal

There have been many times in the last few years where I've felt, "If Labour doesn't do "x", they're garbage". But right now, with only two bad options ahead of us in the next 3 days, I feel no such absolutism.

Politically, abstaining looks better. But that's politics.
Voting for it shows Labour did the thing it knew had the lowest chance of leading to the devastation of No-Deal.
BUT I don't think Labour has done enough this year to show they see this whole thing as damage limitation.