So let's imagine some company is really bothered by such issues and joins this working group (note the hefty price tag of $120k/year).
The price tags are just a proposal and haven't been validated currently. But I think you are referring to the highest one which includes steering committee membership.
My understanding is that non-steering participation does not give any voting rights.
1. Are there any guarantees somebody would actually implement these enhancements? What may prevent these funds from being spent on EMF enhancements if they get more votes?
I think it will be important to make that the working group operates open and transparent. Therefore, the whole funding and wishlist including voting will be visible. That allows to make a clear judgment on what impact specific funding will make.
This means that either companies invested in CDT or EMF will not get what they joined for.
2. What would be a timeframe before implementation starts? Would there be a committed delivery schedule?
I expect this to happen as part of the work item analysis and upon assignment of such items to the implementation partner.
How will this happen? A lot of time will be spent defining the "wish list", then RFPs will be sent out, prospecting "implementation partners" will submit proposals, voting on proposals will commence, so on? Sounds like years will pass without any output.
3. How could such a general-purpose text editor avoid sharing the fate of Bug 155323
It's an important role of the working group steering committee to find solutions to such problems. I could imagine that if no project is willing to accept a feature such as a general purpose image viewer or text file editor, the work is brought in as a new project and made available as part of the release train and in the downloadable packages.
I do not think these two items can happen without at least some platform changes (I am only familiar with E3 - and at least hooks will have to be put there).
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