Old posts on this forum vanished

I posted some stuff about using PV generation to heat DHW and also towel rails etc some years ago. I tried to find it again but it’s not there. Are old posts cleared off after a certain time? Is there an “archive” anywhere I wonder? I only wanted it because someone was asking about this topic and I wanted to point them at my solution.

Any member post/reply history can be viewed from the profile link -

e.g. Profile - gandkslater - PVOutput Community