the TMA block eq curve may not be appropriate for everybody, so they might still have to do the match anyway. plus, the amp settings etc may not necessarily be optimal or quite there yet. There have been times when I shared stuff that was not quite there and I regretted it afterwards. Its not always for selfish reasons that people don't share, sometimes they just dont like being totally exposed to technical scrutiny. Same goes for recordings, but more so.
No-one deserves to be labelled self-absorbed for doing a good job on a tone but don't opt to share the patches.
I think the forum topics might be confusing.
Youv'e got "recordings" - thats where recordings go. You don't have to post the preset here, right? but it would be silly not to post a recording
Youv'e got "preset exchange" - thats where presets go. You can post a recording here, but if you don't post a preset, ppl may get annoyed....
Then you have "tone match". No limits, no rules.
Post a clip first. if people dig it enough, post the patch if you are comfortable with that.. thats the way it usually works and it works fine.