Another solution to update your thread past the 60-day time limit, and not being a regular, is as follows:
Keep an up-to-date version of the source-code of your thread in ‘notes’ on your device, or somewhere else along those lines.
Whenever you’d like to make any edits, copy this source code into a PM with yourself/your VA account on the Infinite Flight community, and make any edits necessary whilst you can see what you’re editing and how it will look on the thread.
Copy the source-code and paste it over your old edited one in your notes, to make sure you always have the latest up-to-date copy.
Head over to https://pastebin.com and paste your new, source-code containing your new edits. Copy the link to this source code.
Pop a private message to a moderator, and politely request for your thread to be made into a wiki and edited/updated to the latest source code from https://pastebin.com that you’ve linked.
This should hopefully help alleviate the workload of making a brand new thread when you can’t edit the old one anymore. Obviously editions should be kept to a minimum, to ease the workload on moderators. If you know a trusted regular, they could also update it for you once the thread has been turned into a wiki.
Try and make as many changes at once as possible to avoid having to constantly do this, and also try and include information in your VA thread that will remain accurate and not constantly require updating - this will also alleviate the workload on you.
I hope this advice helps - feel free to contact me with any questions.