I now have software which measures everything it can find in an image and records all those data which have a formal error better than 0.15 magnitudes (which corresponds to a SNR ~7) in a SQL database, along with other meta-data such as the sequence used and relevant excerpts from Gaia-DR2. I will be able to report cases as discussed above to the BAA photometry database if given permission to do so.
I can do rather more too. An article may be written for a forthcoming VSSC. The software will be made freely available on my web site in due course. Whether access to the database will also become forthcoming depends on a number of matters which include security, bandwidth and storage capacity.