At this moment PARAM_TEXT will validate stuff like:
<span style="font-weight: bold;">Vote for Pedro</span>
I'm using PARAM_TEXT everywhere in the hub web services, I could use PARAM_NOTAGS but Martin said that it would be better to fix the PARAM_TEXT.
Quote: "new syntax is already <span lang="XX" class="multilang">one lang</span><span lang="YY" class="multilang">another language</span>
- so we probably could strip anything that wasn't those two - esp style="xxxxx""