The Bentley Owners Club had a similar register - leather bound.
How times have changed.
Even if members agreed there would still be privacy problems, even with just a name, phone number and location.
Once such a list/register gets out into the wild you have no control over it
What happens when someone leaves the club and wants their details removed ?
It has happened in the past in the club and on this forum.
There are stroppy people out there who try to protect their privacy (and cause trouble just because they can) and can decide at any moment they no longer wish to take part.
....
I think modern technology has taken over the role of the old leather bound register.
We recently had a case of a foreign visitor travelling in Wales and had a breakdown.
Through this forum, mobile phones etc. "we" got the stranded vehicle going again in quick time.
In this day-&-age you'd be nuts to travel without breakdown recovery. Help is just a few hours away.
We didn't have that in the old days. It was a (long) walk to the next village or AA phone box.
If we are talking about garages and services which could help more in the restoration/re-build category - e.g. who is best to do a chassis swap, an engine re-build or a re-wire then personal recommendation is the best method for answering the question.
A garage that was good a year ago may have been excellent, but then they loose the old guy with all his knowledge, or they close down. Or a new business could start up.
Local intelligence should be upto date - and asking the question here on the forum can usually get an answer with suggestions back within hours.
The other resource we have for members is the Traders/Discount page on the website and in the back of each B2L.
Whilst not a comprehensive listing they give details of "reliable" traders.
And although not recommendations as such - we don't list "dodgy" outlets.
It's down to the members to report in their experiences.