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Some FTers are supportive of like/helpful button. Some are not. Some on both sides of the issue have questions, concerns and/or need more info. This wiki attempts to highlight them in bullet format/"cliff notes" version from the 566 posts in this thread. More detailed information regarding the pros/cons/questions/concerns/info can be garnered by reading the entire thread, where FTers on both sides of the like/helpful button have been eloquent/provided valuable input.

Pros:
* Makes Flyertalk more modern; more like Facebook, LinkedIn, and other progressive internet bulletin boards
* A like/helpful button would minimize unnecessary replies such as +1.
* Streamlines posts
* Positive feedback incentivizes quality content/FTers will post more
* Some people won’t take time to write a thank you but will post a like
* Those with more likes/helpfuls are considered knowledgable

Cons:
* Makes it easier for airlines/companies to find mistake fares/glitches/underground tricks
* Makes Flyertalk more like Facebook/dumbs it down
* FT had rating system here years ago and it did not go well
* System can be gamed/cliques develop
* Clutters up posts/takes up valuable screen space
* Will not eliminate +1s/+1s also provide positive feedback
* Posts that have inaccurate info can also get likes/doesn't mean poster is knowledgable
* If FTers post info & it doesn't get likes/helpfuls, less incentive to post more
* Some who might have posted info in the past will now just post like, so less information provided to other FTers.
* Older posts will tend to have more likes/helpfuls on average than newer posts in the same thread, which can be misleading when the information is out-of-date. [added by MSPeconomist]

Questions, concerns about how it will work, and/or information based on brief internal trial already done
* If implemented, can FTers who prefer not to utilize the like/helpful button turn it off so that they don't see it?
* Is there a software way to separate likes of posts from posters? (Limited trial indicates no; don't know if software can be changed to do so)
* Can a post/day count be implemented before implementing for FTers, similar Omni/CC? (Yes)
* Can certain forums have it turned off such as Omni? (No, current software is it's either all forums or none)
* If a sitewide trial is created, what are the metrics for success or failure?
* What is the goal of this/how will the data be used?
* If customization of current software is required, will this take away from development on other projects such as a better mobile app?
* Will or can there be a dislike/unhelpful button?
* What happens if a post that is "liked" gets its content edited and ends up having a different meaning than it initially had at the time the post was "liked"?
* Can threads or individual posts deemed helpful be bookmarked/saved?
* Can users "opt out" and select to remove all trace of the system, as is currently possible with the ignore list and removing view of signatures?